Our first Mac, a IIsi, had 3MB of RAM, a 40GB HD and cost $3,420 WITH an education discount. Add on the Extended Keyboard II for $160, and the Apple Hi-res color monitor for $660 and the "free" Personal Laserwriter NT, and the grand total was $4240.00 US.
(approximately $6472 in 2007 dollars according to the government's CPI inflation calculator)
I keep the bill because it gets progressively more amusing...
After couple of years, we bought an external HD for it - 750MB for $379. Prices in 1993 had really come down since 1981!!
My most recent Mac, a 2.33 GHz MacBook Pro with 15" screen, 120GB HD, 1GB of RAM etc. was $2498 with the educator discount.