Never wanted one, even before the initial press conference.
Microsoft just doesn't hold any exclusives that particularly interest me, compared to Sony and Nintendo.
Looking at my shelf, I've got dozens of PS3 and Wii titles, about 6 360 ones. Two of which are Fable sequels (and we all know how that turned out). One of which is Prototype, a good-not-great game that's probably not getting a second sequel anytime soon, one of which is Sonic Generations (not an exclusive, of course), one of which is a CoD game, and one of which is Halo 3 (another good-but-not-great title, though I did get some use out of it), the latter two both being purchased by family members.
Compared to the Ps3 and Wii, I hardly got any use out of my 360. I don't foresee that the Xbone would be any different.