What manner of sorcery is this?Okay, now during the big comics boom from 10-15 years ago, when the variant cover was still a fairly new idea, I could understand the idea of muliple covers for the same book being a slightly perplexing one.But at this point, with the variant-covers-for-the-same-book being a mainstreamed marketing gimmick -- when TV Guide, one of the most widely read magazines in