Briefly, but I reckon they'll go up again after the refurb stock (which tends to be very good value) has ran out.
Apple stuff holds its value surprisingly well on eBay, even the G4 Mac Minis are only like £100 ($200) less than a brand new Intel one.
Normally I'd agree with you but there are different circumstances now.
you could buy a used or refurb "notebook" for $200 less than one now. Or you could buy a totally re-designed new one for $200 less.Which would you choose ?