[hbrav]

Wait, I'm curious about why you think it's "grotesque"?

Do you think it's just not useful as a consumer product for enjoying nature, and that they're conning their potential customers?

Or are you thinking something more along the lines of "this application waste, these _should_ be used to assist the disabled and elderly"?

In the latter case, I think your reaction is misplaced. If a piece of technology is useful to a small segment of the population, it's beneficial to them if it also gets adopted as consumer technology. I claim this because the price of the devices should fall as more of them are manufactured (Wright's Law).