The book counts as an indispensable standard work for diehard Montblanc collectors; the sale prices discussed in the forum are nonetheless perceived as significantly exaggerated. Such moon prices are detrimental to the seller's image without actually being achieved. Commercial suppliers who additionally take over foreign web content more or less verbatim come additionally under criticism. On eBay similar price excesses occur more frequently, e.g. on Montblanc POS trays given to dealers free of charge that are partly sold declared as leather — which would constitute fraud.