Quoting: Flip Martian
I used to have a "woodgrain" Atari 2600 but my younger bother inherited that - and I dare say flogged it off at some point! Wasn't boxed or anything - just well used.
A boxed woodgrain console is worth $130.
I have an original Nintendo Gameboy, a Gameboy Advance and a PSP now. My favourite though is my Atari 520 STFM
The Gameboy if boxed and cmplete is $45.
The Gameboy Advance is $55.
I have an Atari Jaguar in box which is worth $100
Keep an eye out for the VC4000 console which was mainly in Germany.
New in Box it's worth over $9,000 !!!
Boxed and complete in immaculate condition it's still worth $5,000