The Macbooks that dropped heavily were the Core Duo ones ($849), the C2D's were listed starting at $999.
Actually, the refurb MacBook with the below specs was being sold for $1099 before the latest MacBook update. The day the MacBooks were updated, the price on this refurb dropped to $999 (savings went from 16% to 24% off original price).
Refurbished MacBook 2.0GHz Intel Core 2 Duo - White
13.3-inch glossy widescreen display
1280 x 800 resolution
1GB memory (2x512MB SODIMMs)
80GB 5400-rpm Serial ATA hard drive
SuperDrive (DVD±RW/CD-RW)
Built-in iSight camera
Original price: $1,299.00
I've been checking the refurb section several times today and the refurb MacBook Pro with the below specs is still selling for $1599. It's still at 21% off original price. Apple needs to bring it down to at least 25% off original price. That would put it at about $1499. I'm hoping for $1399.
Refurbished MacBook Pro, 15-inch Glossy Display, 2.16GHz Intel Core 2 Duo
15.4-inch glossy widescreen display (1440x900 resolution)
1GB (single SODIMM) 667MHz DDR2 SDRAM
120GB 5400-rpm Serial ATA hard drive
Slot-load 6x SuperDrive (DVD±RW/CD-RW)
ATI Mobility Radeon X1600 with 128MB GDDR3 memory
Built-in iSight Camera
Front Row and Apple Remote
Original price: $1,999.00
Your price: $1,599.00