Yeah I find it really funny that they're doing the reprints, but the old-school movement is huge, and many people are revisiting 1e AD&D because it had a lot more flavour at its heart.
I personally picked up all the old 1e AD&D books about a year ago: PHB, DMG, MM, MMII, Fiend Folio, and Dungeoneers Survival Guide... as well as some of the original GREEN character sheets from TSR!
1e is actually really what I wanted to use for EIB, but I decided to go with a more stripped-down system instead, to avoid 2-week long combats *Cough, 4e D&D Roots of Legend*...hence, minisix.
-LK