When you talk about age, like for example 20 years, to me, you are referring to...... antiques. When I think of retro, it is anything not currently having games produced. I have to hunt for games, which is part of the fun. Anything not mainstream, it's yesterday. It is not about age. It is in finding fun in something that everyone is wondering, why are you playing that? Your response is, it was fun then and it is still fun now. It is not what the "in crowd" is playing, because they traded that thing off a long time ago. The company that built it cannot make money off of it any more, because everything is used. You are concerned so you purchase more than one console, so if it dies, you push it aside, pull the second one out, and continue playing. You have to rebuild the controller. To me, previous video gaming generations are falling under the heading of "retro."