by definition if it were an exclusive, would it be on ps4 as well?
either way sounds like a good deal to me. even if both get mostly the same games, i don't have to put up with all the extra ads on xbox live. and i don't have to give ms a hunk of change every time i resell/buy use games.
oh and i don't have to jump through hoops just to bring a game to a friend's house...