I’m curious about the wall mounted option, and how that gets power without an electrician running a line to the middle of the wall.

People wall-mount flat screen TVs without an electrician all the time, and it's no big deal. Because of its size, this should be even simpler.

That only works if you live in a paper house. Drilling through normal brick/concrete walls is not that easy - we do call someone when we need our wall mounted TV setup.