Lol, comparing apples and oranges. Imagine halo having it's story and content chopped up and them giving xbox exclusive content and early access to a game that was the same price for both consoles. Then giving you a half-finished(being generous here) game and letting your purchase rot for a year before you got to see the content you should have been able to attain a year prior. Meanwhile the playerbase that the whole game depends on dwindles ultimately making your entire purchase worthless by the time said content arrives. So don't even compare halo (an entire game that was ONLY paid for by xbox users) and destiny exclusives (given to playstation players as an insult to microsoft).