Old pump

I just switched from a medtronic pump that is almost brand new to an Animas pump, what are my options of what to do with my old pump? can I sell it?

You can donate it. Animas should have offered you $500 for it. Perhaps they still will.

I saved my old pump as a back up.

This isn't related to your question really, but why did you switch? I'm out of warranty on my medtronic and am interested in the Animas Ping.

I switched because because the one touch seems to be a little bit moresuited to an active lifestyle.