I know exactly what you are talking about. I don't have one because I don't like spending that much money such a small tank. That cage is more suitable for reptiles that need more air flow like chameleons. Keeping the humidity up would be a problem but not as bad as using a Reptarium or similar cage. I think the company is mostly making those cages like that for the extra money that they think people will pay for those.
Anoles are much beter off in an all glass tank with a screen lid unless your whole room is humidified. My room is like that and someday soon I'll be buying those very cheap Reptariums for them. I aready use one for my standing's day geckos but they are in a much drier room because too much himidity is bad for them.