We generally have this discussion each new gen, but I haven't seen it yet. So here goes, which, if any, game will make you take the plunge into the 8th gen? 

For those who know me it's obvious, it was Metal Gear Solids V Ground Zeroes, that's why my PS4 it's on its way now. I know it's on PS3 also, but really I'd end up buying it again anyways.  BTW, damn you Konami for not waiting a year for a price drop =p

So what's your poison? 

Add me on PSN 

MGS V for the same reason you stated. I figured I'd get a PS4 eventually so I decided to pick it up for MGS V and inFAMOUS.

I will probably pick up an XBOne for Forza Horizon 2. If I didn't already get the Zelda Wii U, I'd buy it when X comes out.

Metal Gear 5 will make me get a PS4. Was the same the last cycle too. Only MGS4 got delayed a couple of times in the case of the PS3 :(

Of course Infamous Second Son played a part as well,I actually preordered that before the PS4, wanted the Coles Legacy content. I have to admit that Titanfall looks amazing, but I haven't the time or money to buy both

My rule still stands, I'd like to think there's nothing that will make me break my rule, but that's not true. To re-iterate:

My rule, though admittedly it's one I got from a podcast, but it's a good rule: Only buy a console when it has a minimum of five games you want out for it on the day of purchase, that you can't play on a platform you already own. This is a golden rule, and it's why I don't own a PS4/Xbone. InFamous: Second Son would count, Dead Rising 3 would count, Assassin's Creed 4 would not as it's on the last gen machines. So that's how my rule works. So; Metal Gear Solid V, Watch_Dogs, and The Evil Within... none of these count because they're all coming to last gen hardware. The Order 1886, Final Fantasy XV, Cyberpunk 2077 and Batman: Arkham Knight however all count because none of them are coming out on last-gen hardware. It's a hard rule to follow, especially when they promise better graphics and a better experience, but the difference will be minimal so it's not worth the expense.

All this said, I love Final Fantasy and if they can make FF15 actually decent, something deserving of going up next to FF6-10 as a part of the series, that'll be the shove I need. (I used to scoff at FF10, then the franchise got sooo bad it hurt and now I welcome it with open arms, so that's what FF13 did Squeenix. It was so bad I lowered my standards). So yeah, if FF15 is good I will sing from the rooftops about how my true love for gaming is back; the problem is, this is Sqeeenix we're talking about, so it'll probably suck terribly at which point I don't feel I should be morally or indeed legally responsible for my actions.

Infamous second Son. I will get ps4 for it. Three weeks remaining.

Kingdom Hearts III since the E3, but if I have to say why I already have PS4: Infamous ss, Killzone and Metal Gear V

All of the games. That's why I bought at launch. The first game would be Infamous though.

Arkham Knight
Evolve
Final Fantasy XV
Kingdom Hearts III

Any of those.

Never heard about it? How is it? Do yo have any link?