Now, I wouldn't want to accuse anyone of price fixing, but the Japanese sellers control a lot of the used camera market on ebay. Other sellers follow suit with the prices the Japanese sellers set. With so many cameras of similar condition, it's easy to find the price that the market will bear and run with it. It's a supply/demand and fear/greed cycle that happens in nearly every kind of economic system. Supply decreases, prices rise, consumers fear that they'll miss out, pay higher price, sellers see demand, raise price again.....and so on. It's like the old pile-ons in football (American for you Ronaldo fans) - everyone wants to jump on the bandwagon and will pay whatever it takes to get on because of the perceived scarcity. Then, no one will admit to wagoneering when prices fall and they jump off muttering to themselves "I got a good deal, really, I did."