Marvel will be releasing its set of "Dollar Digests" this week, 64-page black and white, possibly edited reprints of various early material for $1. See here for details. Not sure if I'll see them, so feel free to comment if you do.
FANTASTIC FOUR: FIRST FAMILY DOLLAR DIGEST
AVENGERS: ASSEMBLE DOLLAR DIGEST
HULK: HULK SMASH DOLLAR DIGEST
X-MEN: CHILDREN OF THE ATOM DOLLAR DIGEST
SPIDER-MAN: AMAZING FANTASY DOLLAR DIGEST (maybe)