old computers!!!! psh!!!! i keep all mine. i have 5 or 6 computers. one lapesk, screen broke so it is a laptop and desktop... using it as a server, a viso computer made in the 1970's and many othere. i love computers
I usually sell my old ones or trade to help pay for a new computer. That or if it is really old i keep and use it for when my friends come over so they can do basic computer things.
i usually keep my components from the last generation and use them all to build a complete PC, then mark it up enough to cover my new ones... i almost always make enough to keep me from paying out of pocket