I totally bought a Palm off eBay few months ago. It's been fun to use Palm OS 5 again. I got a model that actually has WiFi, which was also interesting to set up a AP that was compatible with it.
One I got had a dead battery, ordered a new one, it was so much nicer to open the old tech and replace the battery. Just screw and little solder. No glue and impossible small stuff to work with.