The price of Calmet

I have tracked auctions of Calmet's book on revenants and vampires for some time, e.g. here and here. Now a German translation from 1751 has just been sold on ebay at the top bid of € 817,12! It seems that one may have to pay several hundreds of euros to obtain an early edition in various languages. There are no doubt a number of collectors looking for this famous book out there.