Earlier quoted context omitted.
Wheelchair users have no bargaining power against wheelchair makers. Car buyers have leverage. Normally this exorbitant price would incentivize competition in a healthy market, but the private equity players presumably make that difficult. There might also be barriers to entry in the market.
I suspect in the US the lack of competition is due to regulation and liability, not VCs.
It's both.
The US lacks serious competition in _most_ of it's industries right now.