I was in Barnes and Noble today, and didn't see the $12 edition, but I did find (and buy) this
, Necronomicon: The Best Weird Tales of H.P. Lovecraft
. In terms of value, it's nowhere near the $12 edition - it's not quite as complete, and there are several typos - but it's also bound in fake leather, it's illustrated, 878 pages, features a "map of Arkham" circa 1930, and it's pretty extensive. It contains 34 stories, including all the long pieces like AtMoM, Charles Dexter Ward, Unknown Kadath, etc. and two of his poems ("Night-Gaunts" and "To a Dreamer"). The only notable absences are "The Picture in the House," "The Temple," and "The Tomb."
It's expensive (around $30) but well-spent, I think, even if there is a $12 edition with more stuff in it.