Yes, they recently sold for about $13 (U.S.). The Proyo models they are descendants of (*) don’t even go for much more than that. Just because they’re sold out doesn’t make them worth appreciably more.
BTW, if you are willing to spend that much on one, I have a couple of the original Proyo versions mint in box if you are interested. ($200 includes shipping and handling 
)
- Duncan bought out Proyo, the Duncan bumble bee is made from the same mold as the Proyo, just rebranded.