PC player looking for reason to buy ps4.

I'm currently looking for a reason to buy a PS4. I want to play Final Fantasy 15, but I don't want to buy a console that is just going to sit around after I finish that game. I'm also into fighting games and they all seem to be centered around the PS4. I still feel like that doesn't warrant a 300-400 dollar purchase of a box that will be stuffed into a bin after a month.

I've always wanted to play Ni No Kuni 1.. but theres no way I'm buying a ps3. Can the PS4 play PS3 games?

It's hard to suggest games when you guys don't know me so is there a list somewhere? PS4 games that are legitimate PS4 exclusives and not just... whatever consoles define exclusive as? I find it actually pretty hard to find a list of exclusives when half of the games are on PC already.

I bought a Wii U recently too. I thought I'd get a bunch of unique games but I found they lacked depth and story and I lost interest shortly after Breath of the Wild. I don't want another one of those situations.

Thanks for the help.