Or, to rephrase the question, of all the systems you own, which one has gone the longest since you played it? I'm not absolutely positive but I think the one system of mine that I've not played in the longest time is probably my ColecoVision. It might be because I'm not crazy about the controllers or that, if I'm going to play games from that era, I seem to be more likely to play 5200 games. I'm not sure just how long it's been (probably a few years) and I know I haven't bought a game for it in probably 3 years or more. I need to start cycling through my systems so every9one gets some game loving...