I would think all living things need some movement or excercise as well as instinctual brain stimulation(yeah, i work in a laboratory). Or do we get snake veal ?
I throw mine in a 40 gal breeder that's set up like a forest so they can cruise around and explore for about an hr.I only do this at night during their natural waking hrs. Every now and then i'll throw a rodent on the other end. I do this once evry couple of weeks.

Of course i only have 8 bps. If i had like 50 it would be tough.