To be honest, as a PC gamer with little time to play games, I wouldn't get a console for a single game. In fact, the only reason I own a PS3 now, is because some guy didn't want his PS3 anymore, and my brother already had one, so he gave it to me. It's been a great gift so far, considering I've always had an interest in quite a few of their exclusives, like the God of War and Uncharted trilogies, The Last of Us and Red Dead Redemption, which never came to PC. That's 8 games right there.
Also, after playing a little bit of Bioshock Infinite on the PS3, I've changed my mind a bit on FPS on consoles. Not as good as aiming with a mouse, to be sure, but not terrible either. I'm even considering that Killzone thing now.
Anyway, I bought GTA V for it. Played for 1 or 2 hours, seemed fun (keep in mind the last GTA game I played was GTA III years ago), didn't notice any overly long load times or framerate issues, but then I realised GTA games tend to be too time consuming and I decided to save it for later.
Edit: Also, here's the thing about console graphics: for years I've heard and read a lot of things about how PCs are better and yes, they are better, but honestly? The graphics on the PS3 and way, way, waaaaaaaay better than what I had in mind, considering all the shit consoles get.