I guess it depends on how old you are.

My opinion; box them all up and store them in the attic or in the basement, somewhere's out of the way but safe. Some day, perhaps when you have kids, perhaps sooner you'll get the itch to play them again.

Having kids btw (or nephews or neices) is a sure fire way of getting back into gaming. It starts with you setting up a console for the kids to play with and it ends with them screaming for you to let them play too.