If Konami stopped creating MGS on playstation I would drop sony like a bad habit. The sucky thing is, I collect the games and there is no use me owning every metal gear on PSX, PS2, PS3 and PSP if half way through my collection starts consisting of the xbox versions (plus MGS is designed with PS in mind).
But like I said, if they stopped MGS development on playstation I would sacrifice playstation forever even with the other good exclusives. Which is unlikely because they have terms with Sony. So I am cursed