Am I Being Unreasonable? Original Owner Wants Car Back

I found my old 1988 Honda CR250 dirt bike that I had purchased new back about 10 years ago…the guy that had it knew I really wanted it back so he told me $3000 which was twice what it was really worth at the time… while I was loading it in the truck to leave he kind laughed at me that I would pay that much…I said that the joke was on him because I would have paid $10,000 for it….the look on his face…priceless