It's hard to give up free, unless it's many miles from your home. I Have a 6x10 trailer and was able to load 6 of the large floor model copiers. They are not as much weight as you would think. Most are less than 200lbs. There are some good resellable parts including fuse-elements, ram, HD's, etc. But if you plan on parting them out you better have a couple of hours each. I personally hate doing them.