Also, for $100 this might be nice (read: "nice enough") for home automation and home theater control. Even if you also have a better tablet that you would always pick up given the choice, that better one might very well go with you when you leave the house. This would be the cheap one that stays at home for others to use and the kids to play with.

Or a quick and dirty POS system using Square (or whatever other payment processing people like these days).

Cheaper opens up more applications, ones that "also crappier" doesn't always preclude.