Well, I've got four marbled geckos (gekko grosmanni) myself, so I get the attraction. But I don't think I could get a snake, I have thought about it, but since I used to have mice and guinea pigs as pets, I couldn't deal with the food. The crickets and worms the geckos eat can be a bit disgusting (esp. the crickets!) IMO, but that I can deal with.
And as to what's the attraction... Well, they're definitely not the same type of pet that my dogs and cats are to me. I'm not THAT attached to them. My geckos, since they can't be handled, are more like a fish tank would be. They're a whole lot of fun to watch! Every night at least one of them comes to the front of the glass and looks at me. Honest! People don't believe it until they see it, but they do. I guess if they could be handled, I would feel "closer" to them, but these guys like to say in their tank, and do what they do. =)