The problem with wiating is that the story isnt as fresh and means re reading the last 12 books again, and by again i mean ive re read them quite a bit usually when there is a lull and a new 1 is released, so about 11 times ive re read them so far.
They aren't exactly small books, one every year(ish) from a writer who is also writing his own series of novels is a damn big achievement and expecting them sooner is a bit silly. Also yeah, I do the same, read the series about 6-7 times, thing is writers can only write so fast, expecting them to finish books the size of WoT within a few months (plus prining etc) is just not realistic.