I think I have some old Mario games for SNES and that I have mega man series collection somewhere. I also remember that I have a Altari game console somewhere and a Dreamcast. But I won't wisit my old basement for a while sins I am going to move soon. But yes I hope that some of whot I have collected are worth something. And that I will maybe sell them. But I might just not cuz I have a plan for them in the near future ^^
By the time my generation is old and retiring with $$$. The memories of the good old days will make these games go up in value. Kinda like muscle cars did for the older generations.