Randy has an old handheld computer and wants to know if he can sell it. Leo says that most old computers eventually become worthless as far as the market goes, but if it's a unique item, like one of the first computers sealed in a box, then it becomes kind of a museum piece. That could make it worth something. The original Apple 1, for instance, is worthless form a computing point of view, but from a nostalgic, historical point of view, it's worth about $300,000 right now.
Check eBay under the completed listings. That will tell him what he can get for it.