I'd love a pet like one of these, it just seems a bit cruel keeping them in a tank though, and I'm at work during the day so they wouldn't get much attention. :/
Aside from correct husbandry they don't need "attention". They aren't dogs or children and don't need the same enrichment that mammals or other higher orders do and in that respect are the perfect pet for the modern busy lifestyle.
The reptile brain is very basic and instinct driven especially in species that have remained fundamentally unchanged for millions of years such as many snakes. They are ambush predators (the ones I keep at least), staying still for days at a time waiting for prey, then they find somewhere warm to curl up and digest their food. Lots of hiding and remaining still.
They have have 3 basic needs, food, water and warmth and with these met the majority would be "happy" kept in box. In fact many species that live in burrows and crevices are much happier kept in small enclosures.