My wife's bestie is in the process of cleaning out her grandmothers house as she is moving into a condo. She came across an intellivision she used to play as a child. It has been stored in it's original box for decades. She also has a couple of games also in boxes, one of which is Donkey Kong, also Space invaders... and some generic multi card game. Is anyone familiar with this retro console stuff? Does this hold any collectable value? I would appreciate a ball park value they could put on it, as they plan on throwing it up on Kijiji. *furthermore if this blows any ones skirt up... I am certain I can make a deal.