Some people have noticed that I'm selling a bunch of my TG16/CD stuff here recently.... Bottom line is that stuff is stuff I got into much later (end of high school, college age years) The stuff I grew up with... DOS PC games, some Atari 8 bit stuff, some NES, SNES, N64, and Genesis stuff... that stuff I wont let go of. Its a part of my childhood I can always run back to when this adult world gets too taxing.
If you feel a nostalgic attachment to the stuff then PLEASE keep it. You will regret it later... a few bucks now probably wont make a big difference in the long run. If you really feel the need to sell some of it at least, choose one console and a handful of what were your favorite games. Or maybe things that you distinctly remember getting (Oooh I got that game on the last Christmas Grandma was still with us or ***insert your story here***) At least keep a piece of your childhood tucked away in a box somewhere safe. You never know when you might want to escape back to it.