Well, I wouldn't pay a penny more than the regular price of a game, it is in my opinion Sony's duty to make sure konami are happy money wise.

How do you think konami feels when they hear on the news like all of us that rockstar got a check USD 50 million for"exclusive episodic content"

Personally, I got both consoles so i dont care, but it seems to me that in this generation, the so called "new kid in the block" got cash and he is willing to spend it, so sony get use to it, rules seems to be changing and just pay for exculsivity and dont be griddy especially not with MGS, cause it will cost you.