The Silicon Jungle by David H. Rothman

3. Find out how your pet programs run. If you don’t have any available

that work on the machine you’re considering, see if you can borrow some from a friend and have him or her accompany you. Make sure your friend has backup copies in case the programs are damaged by a sloppy drive in machine you’re considering. Remember that in the secondhand market the buyer normally doesn’t have much recourse if later he finds that the merchandise is defective.