Doesn't hurt to have more if they can afford to maintain them.
I do think its rather odd you say they have too much support when this year they only showcased 4 major AAA games at E3 2018 and basically dropped out of E3 2019 due to nothing new to show.. or so the rumours say.
Also keep in mind the gaming industry isnt all for Japanese games. Not everyone (like myself) are into anime styled games. I see alot of that on Steam and i ignore them, just my personal preference.
Also games like SFV was a sellout to Sony but keep inmind Xbox has there very own inhouse fighting game. SFV was basically Sonys anwser to Killer Instinct due to a lack of a inhouse fighting game from themselves.
Should Sony buy out more studios? I say yes because of VR and the lack of games they showed this year. Games are taking longer to make, 3 to 4 years is becoming quite common so having some AA games doesnt hurt to fill the gaps.
Next gen if Xbox and Switch eat up alot of the 3rd party support PS is relying on than thats where they need games on a regular to keep there audience interested. I say the same thing with Steam because Valve rarely makes games and other Digital stores are starting to offer the same amount of support to compete.

4 games a year from Sony would be a very good amount, but even 2 is good.

The point is I don't think that would harm the 3rd parties as Sony games are very either very diverse so each sell to different audiences or most of their games selling to the same people is bought just by a small (less than 20%) of the platform owners, and selling much less than the top 3rd parties.

Until they get to a point similar to Nintendo, where they alone sell more SW than all other companies together I don't think it would be a big problem.

Would be good to see how much marketshare Sony themselves hold within PS4.

Would not hurt to have even more good studios .

Sony are expanding SSM + GG, have expanded Sucker Punch earlier in the gen, created a new studio in San Diego, while smaller teams like Pixel Opus & Sony Bend are growing as a team + developers. Studios like Sony Japan and Naughty Dog work on multiple projects at a time (even if its pre - production in ND's case). Not to mention, Sony has created a bunch of heavy hitters this gen (GOW, UC, Horizon, TLOU2) that can move hardware next gen. Considering the studios they closed down/ reduced at the start of the gen, growth of their in house talent, PS3 games (GT6, Puppeteer, GOW: Acension, TLOU) that could have been PS4 launch titles, and the current pipeline, their out - put on the PS4 has been amazing. PS5 is going to be 10x better.

With that said, I do expect Sony to purchase a few developers in the next couple of years, especially since they are gearing up for PSVR on PS5.

As a gamer that does not own any Nintendo, Sony, or Microsoft stock, I have no interest in exclusive games. They don't benefit gamers in any way. So, I'd prefer that all games be multi-platform. In that sense, I hope that the hardware guys stop buying developers (unless they're going to handle all games like MS has handled Minecraft, and put it on every possible system).

Well, as with most people i do think sony exclusives have been a par above this gen. However while the ps4 has had a number of really good games, i feel they havent made the attempts or tried the variety that we got with the ps3. Gems the ps3 had such as R1-3, Puppeteer, Motorstorm, PSA battle royale, Mag . Even HR which was a risk at the time. When sony wasn't doing so well they put a lot of effort into funding a bunch of kooky games. It feela like they haven't bothered this time and i find that disappointing.

Don't punish Sony, for MS not having enough exclusives. It's MS's fault that they'd rather seem to focus of different colored controllers and such, rather than games.

There's no need for more than one Gran Turismo per generation. Same with MLB The Show, or any other sports/racing games. These should come out once per gen and then have continued support and DLC packs for the rest of the generation.

OT: Sony seems to be going a certain way with their studios which seems to be the exact opposite of the direction MS is taking judging by the studios they've acquired. From what I can see MS wants a steady stream of small titles to keep people subscribed to gamepass to check out the next game, none of their studios can be considered a great developer who's going to put out a GOTY contender. Sony on the other hand is nurturing their studios to put out generation defining titles even if it means they make only one or in some cases two games per generation, they essentially want each other their studios to be on the level of Rockstar or CDPR. So far it seems to be working too, they seem to put out GOTY contenders pretty much every year (since 2008 the only year Sony has not had a game in the top 5 GOTY winners was in 2014) and the sales of their games have skyrocketed this generation as well. If they can put out two games on the level of God of War and Spiderman every year then yeah they don't need more than that. Especially considering we know they're doubling the sizes of Guerrilla Games and Santa Monica so they can work on two full productions simultaneously, and they have a new studio in San Diego. Perhaps do the same with Naughty Dog, and Suckerpunch and they'll be golden.

I have never thought that way, but certainly for gamepass it will be much more profitable to keep chunneling smaller games that the subs itself pays the cost than make games that need 5M sales at full price, because the subs won't pay those.