I can think of a few that might apply to people:
* Simply want to
* Want to be in the living room
* Want to use the big TV the Xbox might be attached to
* Want to play CQC before Xmas
* XB1 more powerful than your PC.
* Want to play with Xbox friends that don't have PCs
Now they wouldn't all apply to me, particularly as I don't have an Xbox, but it's quite easy to imagine these simple reasons people would switch, or play on both.
Now as to you, I don't know your circumstances, neither do FD, so I'm not sure I or anyone else can give you ONE reason why YOU should buy the XBox version. It seems quite obvious you don't want to. So it's fairly moot really.
I'm also pretty sure given the rude and demanding tone that you won't be getting a dev response any time soon. Unless of course you mention yaw and invoke the power of the Mighty Michael Evans. That's not gonna be the response you were after though!
* Simply want to (already have the game so no thanks, and no other titles for xb1 appeal to me)
* Want to be in the living room (already am and on the couch and using Hotas)
* Want to use the big TV the Xbox might be attached to (already am nice big 50")
* Want to play CQC before Xmas (couldnt care less about it i want to play Elite Dangerous not Deathrace in Space)
* XB1 more powerful than your PC. (pfft not likely give XB1's specs)
* Want to play with Xbox friends that don't have PCs (i have more friends in the pc game and on my stream account than on xbox)
as for the devs pretty much every dev response so far has been the same patty cake responses "its good" , "its ideal for the platform" yada yada yada.. i've given up reading them as we're not gonna get a true explanation, though most of us have peiced it all together anyway. cest la vie!