Yeah, and visually it's easier on new people who aren't used to tubs, and who may even think they're inhumane at first glance. Plus, I like being able to come out at night and watch my snakes flopping around and climbing things; and I think the animals do benefit from having the opportunity and space to flop around and climb things.
They have good posts here on DIY tubs on this forum, though, if you ever do decide to expand.