Anything marketed as an aid or adaptation attracts a massive mark up. If you want proof just start looking at specialist sites and see how many fail to put a price up. Imagine if supermarket websites didn't display a price but just had "Call us now for a free quote" alongside their listing for beans.
I've also seen employer disability top trumps. Because it costs fuck all to dish out a lanyard and claim you are "disability friendly" than it does to fit ramps, accessible toilets and kitchen facilities along with adapted desks and office layouts.
A good litmus test of how sincere a company is about disability is to read whatever comes up when you click "Accessibility" on their website. If it is a lot of self serving spiel about how accessible the website is then you can discount anything they have to say about disability. If, however, it actually provides useful information about physically attending the business premises, then I'd suggest a lottery ticket would be a good investment.
I've spent 30+ years in the mix for disability rights. And - like womens rights - we've gone backwards. I'd say we are about 1982 at the moment. Probably get to 1975 by 2030.