I will tell you exactly, since I have bought from him. There is a buyer's premium of 20%. That's what Joe/PIH takes from each item sold. What you also don't see is how much is not sold. A fair amount goes without a bid, especially all of the COPIOUS Star Trek stuff. Paramount has opened its vaults to PIH for years and there is just so much from TNG, DS9, Voyager, Enterprise, etc. etc. that most never sells. You could, if you wanted, buy any number of phasers from any number of ST movies or shows for next to nothing.
I'm almost positive the fees come out of the sellers "profits"....
I thought it was 20% on both ends
UPS = unusually pathetic service