Erm, where's the PC Engine, Atari 2600/7800, and Atari Lynx consoles on that list? Perhaps the Lynx is a reasonable omission if handhelds are not being included in this poll, but the others are biggies IMHO.
Also, can't see how the Sega Dreamcast and PSX are retro and the Neo-Geo is not. The number of Neo-Geo releases is a mere trickle compared to PSX 2, XBox etc. Even the Atari Lynx still has games being released for it today, but you really wouldn't call it anything but a retro handheld console.