The list prices of Solitaire ballpoints at Montblanc are basically above 300 euros; in the 200–300 euro range a Solitaire model can be found at most second-hand or as new with reputable eBay sellers or via the sales sections of relevant collector forums. Within the Solitaire line the Classique versions in gold or platinum are at the lower end; a complete overview of materials and model variants can be found on fountainpen.de. For online purchase collectors recommend monitoring several auctions in order to determine reference prices and thoroughly comparing equipment features against relevant collector pages to rule out counterfeits. To care for gold alloys soft cloths suffice; aggressive polishing should be avoided.