I have an old laptop that i could clean up and maybe get a little out of, a desktop that also needs to be wiped and cleaned and such, but is in no way fantastic. It'll let you do very basic things like email and just use the internet but no real gaming or anything. Then i have about a 20 year old gateway desktop tower that I'm pretty sure doesn't even work. And also an old Dell tower that may or may not work. all of these are in no way gaming computers and may potentially be able to just do basic things like i said above. What's the best thing to do with these things to get some money out of them to spend toward a new gaming computer?