I'm sure they aren't rare. I low-balled the sellers with a KLOV price and they accepted it. I inquired where they got it from and they said that they won it after spending some money/tickets at their local Dave & Busters chain.
I wasn't to hip on it at first. The sellers had it on CL with a bad picture. I had them send me an additional 4 pictures-- but 3 of the 4 were of the back. I knew what it was right away after I seen the Galaga decal.
Prairied-- It is an actual booster, not a potty. My daughter is sitting on the other booster. Be mindful of having kids close in age, you gotta by doubles of most things! I like how they fight over the controls. Daddy had to move this thing out of their reach and put it in the basement this evening!