Not really
You'll find them for sale on Ebay fairly often. Sellers think that they are "rare" and "collectable". I've seen a couple listed for over a year. They don't understand that a conversation piece wall hanger is maybe worth $30 -$40. In completed auctions, I've never seen the $150-$200 asking price met.
I have a Reeves pump that I acquired for a reasonable price. It functions, and is fun to show and tell.