For those that want a real piece of HRG, there is a website called Artnet which auctions various artefacts of the Artist: early sketches, alternative models, and adolescent scramblings.
You'll never see any prices listed because all pieces are auctioned. And if you want to know an expert's valuation, prices start at $32.50 for a one-day pass. That's what you have to pay just to see.
However: if you sign up for e-mail alerts you receive a general guess for free. Most pieces I've seen start at around 5k Czech Francs (roughly $5.1k). Of course what you'd really pay depends on how aggressive your bidding competitors are.
So if you have a pile of cash sitting around.. this is for you. The rest of us poor slobs can only watch.
https://www.artnet.com/artists/hr-giger
