@CU_AMiGA
By failed consoles i mean:
Panasonic 3DO
Philips CDi
Sharp X68000
Sinclair Quantum Leap
Atari 5200
Atari Lynx
Sega Nomad
GP32
Sam Coupé
The Atari 5200 wasn't a failure. At the time (early 80's) it was -the- console to get. It only died because Warner Communication (now Time-Warner) decided to get out of home electronics.
....etc - The list goes on!!!
to the Atari 7800 and Jaguar, the Sega FX-32 (I dunno, that wasn't really a console, was it?) and Saturn, and let's not forget Nuon-based DVD players.
Being the owner of 3 Jags, I think I'd have to vote for the Dreamcast (I've never owned one). It was the console with the most fans and the fewest games.
I'd vote for the Jag, but it wasn't successful enough to be a failure. :-D