Wii U. Bought it for $250 and got Super Mario 3D World, N.SMBU, and Mario&Sonic. Played for about a week, then stopped for 3 months. Got Mario Kart 8 to see if it would hold my interest. It didn't. Sold all 4 of those to get my 2nd Xbox One.

I'd probably have to say my PS3. I've spent more time downloading OS / PSN store updates and watching Bluray movies than I ever have gaming on the thing.

They should have kept it at 1.

Playstation Vita. Bought it in June, hated pretty much every game and discovered that portable gaming would never be for me, sold it in September.  Also 007 Nightfire for Gameboy Advance God it was horrible

But, they did two ;) (And a third!)

My Xbox 360.

It broke after 6 years.

It's my only console that has ever broke down on me.

I bought($50) what was billed as a GTA MMO game "APB" it was by the guys behind the first crackdown. I didnt get to play it and within 3 months the game folded and the servers were shut down until it was later released as a F2P game. I still have the sealed copy rotting in my attic.

With a name like Ultraman, I think most of us would have made that same choice. ;) But Joe & Mac is classic.

OT: For me, it was my 3DS. Not because it's a  bad system, but because I bought one from my nephew a couple of months ago for $100 to help him out. What he didn't tell me is that the R button doesn't work. Coincedentally, I've been waiting until this very day, July 1, to register it to Club Nintendo to get my points counted toward the new fiscal year, and most importantly, to try to get it fixed for free.