All you have to do is put up some boxes at the corners of your room one time, and then plug them in. They don't even need to be connected to the computer in any way. They are small, and silent, and nonintrusive.
I get that it's not the best user experience, but for a thing you just spent $1,000 on? I'll take a couple of boxes and better tracking over no boxes and worse tracking any day. I never saw complaints like this over the Wii sensor bar.