I can't believe how fast the Rev A's prices have fallen, I can't remember any other mac losing 40+% in value in 9months time.. Even, 4 year old PPC Mac mini's have held their value.
Worse actually, I have found MANY ebay used, but perfect condition AIRs that are 1.8 with SSD and they are only 700!!!!!!! Crazy right? But seriously, the REV B is soooo much better that its hard to sell "old" technology.