They have become so sophisticated Red, with so many people getting into them, that they are just as good as professionally made humidors. The reason they are called coolerdors, is because everybody's always got one, two or more styrofoam coolers laying around the garage. I've got at least ten, from various Omaha Steaks deliveries through the years. I'm in the process of using them to pack up fragile collectible items so my eBay rep can come get them.
What many people, like those innovative, mostly young folks who inhabit this forum do, is take these styrofoam coolers and incorporate some of the incredible technical homemade accoutrements that the members here have been talking about. Coolerdors have tremendous advantages in that they can hold literally hundreds, or in some cases, thousands of cigars, instead of just a few dozen, and don't cost anything in the case of the styrofoam kind.
Many people who like to tinker, and have the kind of technical know how that folks like jihiggs and the others involved here obviously do, make elaborate projects, such as the ones discussed and displayed so often on this web site. In so doing, these people have contributed immeasurably to cigar culture.