Work places where you'd normally dock a laptop, for example. But I'd rather carry a laptop, quite frankly. While the MouseBox would be far more portable, it would not offer anywhere near the same freedom as a laptop would, and it would be underpowered by necessity.
A further problem is that some people simply don't like your average cheapo mouse, and some people prefer very light mice.
Yeah, I'm very particular about mice. I don't really care about my keyboard, but my mouse has to be perfect. I have a Logitech Anywhere MX, and it's the best mouse I've ever had.
This mouse looks like the cheapo ones you see tech stores giving away on black Friday.
A further problem is that some people simply don't like your average cheapo mouse, and some people prefer very light mice.
It's a weird concept.