1. I love Nintendo games.
2. I like off TV play.
3. I find the Gamepad interesting, especially for multiplayer.
4. Smash Bros with Mega Man.
5. I value local multiplayer over online co-op.
6. I'm a big fan of both Sonic and Bayonetta.
7. I play online infrequently enough that paying $60 a year for online is unappealing to me.
May not be the perfect upgrade for you, but it is for me. As of now, the PS4 and XBox one do nothing for me, since there is nothing that interests me that is not available on current gen consoles.