I never did like the way Sega sealed their PAL Saturn and Mega Drive games in particular, with just a small Sega sticker on the opening. The case still gets dirty from being on store shelves, and stores still put horrible stickers on the covers which can't be removed without tearing the cardboard cover underneath
I am glad that Sega decided to seal Mega CD and Dreamcast games after that. The cardboard 32X game cases were the worst!