My systems are in excellent condition, they all work completely fine with some minor issues. The Game Boy Color has actually no colored graphics, white and just black, and the beginning button my be hard to press. The Game Boy Advance SP is in perfect condition without any problems. The DS has marks, with a D-pad that needs a small amount thumb strength to press it, also the top part of the Ds is loose and stop when it's opened all the method.
Video game Boy Color $40.
Video game Boy Advance SP $50.
DS Lite $50.