This article from Gizmodo.com discusses the interesting designs of casino carpets and how they may be designed to be purposely distracting to keep people gambling. Others believe they are deliberately designed “to obscure and camouflage gambling chips that have fallen onto the floor. The casinos sweep up a huge number of these every night. So the carpets are just another source of revenue.”

The Ugly Carpets of Vegas are Hideously Clever Social Engineering at Work