I'm probably not buying the PC version right away (unless its going to be farther out than anticipated) cause of wow and MHGU, but for me what makes me want the PC version the most is just convenience. I don't know how people stand playing on consoles with how incredibly inconvenient they are vs PC's. The graphics and performance haven't been an issue for me.
I was heavily debating buying the ps4 because justifying the console purchase was difficult, especially when I knew it'd be coming to PC eventually so its not like I'd never play it otherwise. I ended up going through with it because I was just running out of content in WoW and had nothing else going on + I'd get to finally try a bunch of exclusives I always wanted to play. I honestly started typing this more on the fence about the purchase but as I typed this I realized I'm more happy I went through with it than not. I'm really glad I got to play some of these exclusives, like horizon was a lot of fun, god of war is fantastic and I can't wait to see what comes of that franchise. Some others weren't all that I was hoping, or I just haven't gotten around to yet. But overall I'm glad I went through with it.
I'll be buying a switch because of MHGU as well, will definitely be picking up some other titles because of it and will see what comes of future titles.