I have no issues with this at all.
To put it in perspective , for some people that are thinking OMG $30,000.
One could go our & buy a car, not even an exotic or Luxury. But say you wanted a Mustang V8 as a "fun car", you would 'nvest' more than this amount, and the minute you drive off the lot, you've lost some serious $$$. If you need to get some $$ back, you can sell your fun car.
With these lights, you get the same or more enjoyment as batteries are a lot cheaper than gas, and they would be easy to liquidate when/if your hobby changes.
Hey, I've done the same with watches.
BTW, would love to drive to Alta to see these in person.