Yesterday Wizards announced they’ll be reprinting the 1st Edition AD&D core books in new collectible (in the pre-Magic sense of the word, thanks) editions this April. We can only assume that the choice of reprinting this particular edition, rather than the white box or something else you can’t readily find in free boxes on the curb, was chosen for reasons of rights and convenience on Wizards’ part. It would certainly speak volumes about the supposed commitment to embracing all editions in D&D Next if some other reprints got the same treatment.
EDIT Mike is a jerk: it makes a certain amount of sense that this is a reprint of the last major edition of D&D that Gary Gygax was personally invested in, since the books are a benefit for the Gygax Memorial Fund. Okay then.