This game is great and I'm enjoying it immensely.
It also looks fantastic on my 360, even though mine is a pre-slim model.
I'm not in the business of waiting around up to 7 months, or more... for a version which isn't even guaranteed to happen at all. Do I expect it will happen? Sure. Do I prefer to play games on my PC? Absolutely.
Though, honestly, I've been dealing with a lot of PC bugs lately... lots of games crashing on me, either to desktop or rebooting my entire system... or games minimizing to desktop, or just never starting in the first place. I had a hell of a time getting Outlast to work. Witcher 2 was giving me crashes... lots of others.
So yea, it is nice to just play something which will run and run, and never crash.
And again, the game looks fantastic on my 360. Playing it on a 40" Samsung LED TV from maybe about 5 feet away... I could and would play it on that same TV using an identical controller via PC, but sometimes it can be a bit of a headache to get games to appear on the screen I want them to. Max Payne 3 was one that I played that way, and I seem to recall it was quite cooperative so I'm sure GTA V PC will be too.
But I would strongly encourage any of you to just cave and get it now... especially if you have a console already. There's so much to do in this game, that there won't be any reason you can't play it again on PC. I intend to.