Say you want to buy Zammy Pages.
No one sells zammy pages, they are currently ~200k per page..
They are worth alot more, since no one is selling..and everyone is buying them max price..
So, a person goes on the forums, and sells his pages + say 30k Willow longbows (u) for money..
So technically, the buyer payed alot more..since the willow longbows are over priced..