Being 3rd party exclusive can be beneficial if you are targeting a specific audience. I have always held the understanding that simply bringing your game to more consoles does not magically make a game sell more. It is exposure to given fanbase within the userbase.
There is little reason to bring niche japanese titles to xbox, the time and effort becomes less and less worth it. If ps4 has 70% market share and is historically the place to be for japanese games, then staying just on them is more profitable. The people who are into that sort of thing probably own a ps4, so the minute number of sales made on xbox would have eventually been made on ps4. They did not access some magical new market.
Now what upsets this is breaking of said tradition. The more those types of games become less synonymous with PlayStation only, the larger the base for xbox will become. Yet that takes years to break.
Square Enix approach of this puzzles me for this reason. FFXIII sold 6to1 on ps3/360. U have to think, at least part of those 360 sales would have been made on ps3 if not given the option of 360 which really begs the question was it worth it. With each of the XIII sequels we saw that gap widen.
Then they give us all these remakes. KH, FFX, FFXII, etc. All back to being console exclusive to PlayStation. They basically acknowledge the return on xbox versions was not worth the venture. Yet....FFXV is multiplat also again. They recognize the nostalgia gor the series almost entirely rests in PlayStation but they want it to eventually divy up more evenly so their fate isn't so closely tied to them...that's my take.
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