the prices of pins go up and down like a yo yo.
but if u paid $2500 for a machine 3 yrs ago, and u can pick up the same titel today for say $2000 or $2200, no big deal.
some titles have climbed in value, others have declined a little. unshopped pins are cheaper because they need work, fully shopped pins usually keep their prices.
i dont buy into the argument that pinballs are much cheaper today than 3 years ago. As TSPP said, quality machines have held their prices well.