we have kept as many of our robots as we could, but our oldest robot that we still have i believe is from 98, so we have 2 bots that are scrapped
. Its nice to keep old robots as portals to the past, they have a sort of Nostalgic value, you look back at 6 weeks of hard work, and you remember all the time you spent on it, and your competitions. My advice is, Keep them as long as you can.