DC Comics is seeking to replace copies of Green Lantern #1, a key book in the New 52, which have a printing error on the cover.  At this time, it’s not clear the extent of the problem, which is an irregular green loop over Sinestro’s ear.  DC is pulling copies from other markets for comic shops and is promising delivery of the replacement copies to comic stores on October 12th, when the second issue is scheduled to street.
As this is written, the day after the release of the book, misprint copies are being sold for prices as high as $29.99 (for "Buy It Now") on eBay.