I can't say I care much. Aside of a few years during the X360 era I was mainly a PC player. Halo 1 came to PC, then Halo 2 was backward compatible on the X360, for 3, ODST and Reach the main platform was the 360, then Halo went shit so there is nothing to be sad about.
As for Xbox, they self destructed with Xbone.