That's like saying, "I'ma go buy this special DVD player that only plays DVDs from a certain company, cause I like their movies." Instead of saying, "Bitch ass company, release that movie on regular DVD, ass tard."
Isn't that true of all the console manufacturers though? On the Xbox side, Halo immediately comes to mind. That, as far as I am aware, was created by Bungie and Microsoft Studios, originally only available on Xbox, and was then later ported (poorly) to Windows.
I agree with your point though. There are games I would definitely play if they weren't "exclusive" to some single console I wouldn't get if they were giving them away. (Dust 514, specifically, which is exclusive to PS3... which is kind of stupid when you think about it, since it's released the same year the PS4 is released and PS3 games become obsolete...)
But yea. Fuck Sony. Fuck 'em all!