Nintendo's loss.

I disagree with this view. I buy a majority of my games after watching some sort of Let's Play. Reviews are simply not trustworthy anymore. I would much rather watch a bunch of gameplay and decide if it is for me. If there were no Let's Plays I might not have been willing to take the risk on some of the new franchises I've gotten into. The most recent being Ys: Memories of Celceta and Freedom Wars on Vita, both of which turned out to be amazing games.

Well, me, as well as plenty of people that I know had instances where we would have probably bought a game since we were so on the fence about it but decided to save our money and watch a "Lets Play" instead and spend that money on something else. The issue where it happens the most imo is on story driven games. Like for example, if I were to watch a "Lets Play" of Game of Thrones from Telltale games, why would I buy the game since the gameplay itself is average but the story is fantastic? Of course, you argue to "support the developers," and you aren't experiencing it properly and etc but I would much rather save my money cause I am greedy. But, if there wasn't a "Lets Play" on it but a lot of people as well as a lot of websites are talking about the game, I might get curious enough to actually buy the game.

And the same logic applies to a lot of other games. Yes, games are an "interactive" experience but if the game isn't a multiplayer centric game, the game's story will essentially be almost the same experience visually as to what you are watching provided the game is a story driven game and it isn't like an esports/online centric game. Not to say that games will bomb due to having "Lets Plays" but I highly doubt "Lets Plays" help in the grand scheme of things

Edit: Obviously, there are some exceptions to this

This point has been argued a lot of times before, especially the "story-driven" games perspective and whether developers should strike those videos down. I think this only truly applies to a very small minority of games though, such as ones from Telltale games and maybe from David Cage such as Beyond. In other words games that are barely games.

Conventional games are different though. Even if a game has a good amount of story behind it, and I like to think of JRPGs here (because those are what I play a lot), the gameplay is still ultimately what makes you play and brings it all together. Both of the above games I mentioned have really lengthy stories, but I want to play the games and do the missions to see it unfold. MP shooters such as COD and Destiny have HUGE communities on Youtube which only gets bigger as more and more people buy the games simply due to the presence of such a large community. Bungie actively post Youtube videos of others doing awesome things in their game on a regular basis. It just makes people want to play the game even more. If they thought people would be put off from buying their game by watching it, they wouldn't post such videos. I'm sure playing Mario and watching Mario are two different things, even if everyone inthe game is getting the same experience by jumping over Goombas and capping flags. Even you would agree. If you like what you watch, it only makes you want to play it even more. At least that's how it is for me.

The other point is if you watch a game and feel like you don't want to buy it, that's a good thing because you just saved yourself some cash by not buying a game you wouldn't have enjoyed or didn't like enough to warrant a purchase. There's no need to feel bad about it. If videos of a game makes you feel like not buying it rather than making you want to run to the store and get it even more, then it is very likely you probably wouldn't have enjoyed that game in the first place. A game shouldn't be sold as a "mistake" because you went in blind, following a hype train or whatever only to hate yourself for it later.

Well, the reason I didn't buy it isn't cause I hated the game or I didn't like it that much but the reason I didn't buy it is cause if I did, I would waste my money cause I knew what to expect which is another point that can be highly argued. Watching a "Lets Play" deminishes the overall game experience imo because if you watched most of the "Lets Plays" (gonna call it LP from now on) from the beginning to the end or almost the end, you will have relatively a good idea on what to expect. You will know most of the level design, where to go, what to do, what surprises may await you that the developers intended as well as boss battles and how to beat them. Something like that affects a wide varity of games that doesn't nessessarily have to rely on Story alone. Zelda has many puzzles as well killer boss fights and dungeons but depending on which zelda you play, it is ment do be done in a "linersh" fashion and once you see all that the game has to offer, you may not want to bother purchasing it not because its a bad game but your experience will relatively be the same. You may do somethings differently but the overall experience will be close enough to it and the reason for actually buying the game will be a lot less because you know exactly what is going to happen and since its a single player game, that is hardly going to change hence why it you can just save the money and spend it on something that will give you more of a "newer" experience.

And I also don't count "online/esports" centric games like Cod cause online games are more or less a "social experience" that can't really be replicated through "LPs" cause even though its the same map with the same weapons, you will be having a different experience everytime just due to the fact that you are playing with people with different skillsets and you are also interacting with different kinds of people that will play drastically different than NPCs.

I don't think Nintendo is going to budge.

I don't know man. If you're liking a game enough that you can sit through a 10+ hour playthrough and still not want to play the game, then I really don't know what to say. I think most people at that point would just buy the game to experience it for themselves, even if they know what to expect. Watching for me only makes me want to play it more, if I like what I'm seeing that is. But perhaps you have some crazy ability to suppress your desires (god that sounded wrong). Although I will agree that I've seen some people not buy David Cage's "games" because they just saw a playthrough of it. But then again I wouldn't really call any of his "games" games. 

To address your other point about LPs being good for MP games. Taking that into account, LPs or gameplay videos, whatever you want to call them are overall good for the industry since many of the biggest games nowadays are very co-op/MP oriented.

Honestly, that's kind of a dick move on nintendo's part. At least MS lets ppl make money off of ads when they do vids and more importantly you can make vids off their games and what not.

Well, its just the whole "I already know whats going to happen so I don't really care about it the second time around" sorta deal. Its kind of like watching a movie as an example cause if you already watched the movie for free, why would you go out and buy it on bluray? You already know the plot and everything thats going to happen so why bother? Its similar logic when it comes to various single player "LPs"/games but to a bit lesser degree cause games give you a way to interact with it as well as providing you with a bit of a different experience in your playthrough but imo, for a lot of the single player games, the experience won't be different enough in order to get the most amount of value for that $60. A game is at its finest is when its new and spoiler free and the game is at its weakest when you already know everything about it.

And don't get me wrong, I am not saying we should ban LPs and LPs are the worst thing to happen since animal porn cause I am not trying to say that at all. I enjoy watching LPs from people like SShopkc from the games I have already played and he is a very entertaining and honest person. But what I am saying is that LPs should quit whining about companies when stuff like this happens and they should adapt (by doing royalty-free music) and/or understand that mistakes happen instead of trying to act like they are doing the companies a favor cause without the companies' content, what they do is meaningless and no one would care about them.

Yes, you do have the "core" that always watch a channels video no matter what they upload but imo, those are the minority in the case of Most LPs. Most people are drawn to the game rather than the person that plays them but granted that it is a bonus if your favorite LP does play it. Its like when Sshopkc was playing D4 and I don't really care about that game so I didn't bother watching it but when he uploaded Mario Kart 8, I was like fuck yea I will watch that shit.

I personally think of gameplay videos akin to watching a video of a person driving a car I like. Sure I'd find out everything that's in the car and my experience in the car will be very similar to the other person's, but that wouldn't stop me from wanting to drive it. In fact I'd just want it even more because ultimately driving is an interactive experience and the fun of it comes from doing it yourself, not watching someone else do it, even if you're both doing the same thing. But I guess we'll just have to respectfully agree to disagree on this matter because both of us are using anecdotal evidence to prove whether LPs are harmful/helpful to a game's sales. Without any kind of hard numbers either hypothesis would be hard to prove and getting any kind of numbers on this matter would be very difficult.

Back to the two games that Joe mentioned in the video, SSBB and Mario Kart, neither have any substantial story mode. Both of them are very MP focused "social experiences", as you called them, and even you agreed that these benefit from LPs. I don't see how sharing races/matches from those games could be harmful in any way, and again as you yourself mentioned, your experience is vastly different every time you play against different people online or offline. So Nintendo should have no reason to strike any of those videos down. It really is free advertisement at this point, especially to over a million people that are subbed to Joe.

On your other point, I frikkin flipped out when ProJared started doing Nuzlockes of various Pokemon games too. I don't watch many of his other LPs, but I love those Nuzlockes so much...just to see his reaction when any of his pokemon bites the dust. I'm evil like that lololololol.