User blog comment:Roygbiv666/UPC Code/@comment-16487016-20090224071225

I think it's just a publication thing. You purchase comics in comic shops, and they know how much a comic costs. But they also sell comics in other places. Like, in gas stations, and in Barnes & Noble's. I've never bought a comic in any other place, but I feel like it would be more useful in establishments like that. Good point though, I have never seen someone use one of those things.