Please see the link i sent. These are good wheelchairs. There is ZERO reason why a cushioned seat on a pair of wheels should cost more than $1K. I am always amazed at the extent to which Americans go to justify the crazy cost of medicines, healthcare, equipment etc in the US. Folks, you are being taken for a ride. Don't keep making excuses for the profiteering healthcare companies in the US.
How do you know they are good? Did you use one for an extended period of time?
A set of wheels and a cushion do not make a good wheelchair, if you want to live an active life. Please see https://news.ycombinator.com/item?id=41721976
I am from Europe and chairs are a bit less expensive here, but an "active" wheelchair is usually more than 2k$ anyway, often closer to 3k$. And some are much more than that (for instance if you want a soldered chassis)