I think they do get bored, especially the younger guys. Enjoy it now though, they can get to be pretty lazy after they mature. True story, just yesterday i watched Zen walk over to eat his greens. And i swear he laid flat on his belly to eat them. He wouldn't even stand up long enough to eat.
The only thing that keeps him moving are the girls, he is like a completely different beardie.
If you have a television or pc near by maybe put something on thats colorful and moving. I used to play drone movies for my guys. They seemed semi interested for a little while.