Depends who is the buyer. I know a ton of people over the years that paid too much for a title. Simply didn't do their homework. If they wanted the game NOW and money is no object, then the seller is in a position to set the price. Most salesmen work in this manner.

The market is increasing for high quality machines - not confined to "A" list titles. SS and EMs are starting to creep up again. Poor conditioned machines are dropping in price.

IMO the strong aussie dollar has given the opportunity for many of us to import some really nice high end pins , due to the economic climate in the state there's been some really awesome pin that have been force for sale .  It seems like the sort after pins are creeping up in price depending on the quality of cause .
I would of never believed that I would pick up a HUO T2 with less then 950 games on it ,looks pretty close to new .
But I did pay the price of it (because I had to have it )  .