they’ll need to conduct research to prove their added value.
Oh come on. Can you imagine someone trying to conduct a ‘scientific’ study–that is, math based and using demonstrable measurements–for what is essentially a series of experiences from 10,000 different hearing aid users? It can’t be done. It would all come back to what’s been called above “anecdote”–that is, some folks had a positive experience at costco and some didn’t. And the reverse concerning independent providers. In short, you’d ‘measure’ anecdotal info.
You’re ignoring this member’s posts.
. Including Dr Cliff.