This thread is bonkers. I'm not even American and it took me all of two minutes to find a bike for $118 USD (or about 90 GBP) available from Walmart. Here it is: https://www.walmart.com/ip/1121295
It looks like a perfectly serviceable bike, if not the most amazing experience. I bet you with proper maintenance it could last you decades and thousands of miles.
People in this thread who are claiming a new bike is nearly $1000 are on another planet.
I get that this isn't a wheelchair, doesn't have anything to do with wheelchair prices, and I would certainly not want to rely on this thing in the way a wheelchair user must rely on their chair, but c'mon, guys, stop with the wild hyperbole about bike prices.
So for $118 you get a really poor quality bike that you probably can't repair. Or perhaps you'll end up with one that's just unsafe. $400–500 is probably a reasonable price point, but that'll get you something that's adequate at best. Heavy, clunky, and unpleasant to ride.
Yes, the $118 bike is not going to be much fun, and may be assembled dangerously. It's still a bike, though, and a little TLC and attention to assembly before riding will prevent a significant number of problems. Even the reddit thread you linked just required some screw tightening and replacement of a derailleur -- and a cheap Shimano derailleur is $20 from my local bike store.
Even if we completely discount the $118 bike (plus a $20 part), though...
> $400–500 is probably a reasonable price point
This is a far cry from "much under a grand". Yes, it will be heavy and clunky, but it will function in all of the ways that it is important for a bike to function.
This isn't a bike though... It's a nearly custom fit medical device they'll use most of their waking hours where bad fits can cause permanent damage to their bodies. Their configurator has ~25k options just for the frame fit ignoring colors and all the other parts of the wheelchair.
