I work in a print shop.

The problem isn't the stickers. It's that the people buying the stickers don't understand that adhesives and paper matter.

It's the same with price tags and sale stickers. It's all well and good until you try to peel off the sticker and it doesn't come off cleanly. In a perfect world, the people buying the stickers would purchase the correct sticker stock for the application so that it's always easy to remove.

When done correctly, stickers are always better than the movie/tv show tie-in cover.