It's just a rinky-dink cedar-wood box. I throw a sponge in there to keep it moist. I hear that using ziplock bags is THE way to go now. Just ziplock those puppies as soon as you get them from the store and you're set.
I love the smell of a humidor, though. My maternal great grandfather smoked a pipe - it must be genetic, because I have had a hankering to buy a pipe and some cherry tobacco.