clipped from: www.tumeroks.com   
10. Sega Genesis Add-ons (32x, CDX etc)
Year – 1994
Launch Price - $400 for the CDx.
800px-mega_drive_ii_pal__mega-cd_ii_pal__32x_pal

9. Phantom – Infinium Labs
Year – 2002?
Launch Price - ???

phantom
8. Studio II - RCA
Year – 1977
Launch Price - $149
cstudioiigame
7. Nokia NGauge
Year – 2003
Launch Price - $299
nokia_ngagebig
6. Cd-I - Philips
Year – 1991
Launch Price - $699
philips_cdi
clipped from: www.tumeroks.com   
5. Vectrex Year – 1982
Launch Price – $199
vectrex
4. 3DO – Panasonic
Year - 1991
Launch Price - $699
3do

3. Jaguar – Atari
Year – 1993
Launch Price - $249.99

225px-jaguar-cd
2. Virtual Boy - Nintendo
Year – 1995
Launch Price = $180
virtual-boy

1. Action Max – Worlds of Wonder
Year – 1987
Launch Price –Unknown

300px-action_max