Ehm... Seeing the product... A right price could be more 300$, and only because not made in China, than 1000... If mass produced could be more 150$...
I've heard many time about "special design", "this price is really right" and so on, all the time it was wrong. Oh, that does not means it's a bad product, it's simply overpriced and the price might even be right seen their expenses and resources, but it's still too much for a market who offer other very similar product at a much little price.
An idea alone does not suffice.
You cannot compare these wheelchairs to what you might sit in at the emergency room, as they are for different use cases and fill different needs. These wheelchairs aren't for "oh I broke my leg and have to use a wheelcahir for a few months". These are for "I will be spending 14+ hours a day in this chair."
Please do some research about rigid frame wheelchairs before saying you don't see how this is a big deal. Companies like TiLite and Quickie START at almost double this price point for similar products.
That's the reason why Xerox have failed, IBM and Microsoft succeed, GNU/Linux succeed over other unices and so on. It's the same reasons why our EVs who are indeed a bit superior over Chinese ones can't succeed give a mean 4x price tags and their OEMs end-up with lobbying for stellar custom duty and alike to stop them.
Sure, design a light and rigid chair demand a significant research effort, but in the end you give a simple product, you can't count on warm welcome at certain prices. Like designed a road bicycle, it's expensive, you have used complex materials etc, but you can't count on big sales if you push your profit too high.
Currently in the west ALL the few who still produce something have climbed the prices claiming inflation so much that they are no more interesting, competitive respect of China. It's a lesson too many do not want to accept.