I think that maybe highlights another difficulty here: there isn't really a one-size-fits-all solution. Some people will need full support, and others will need more of an assist. Not sure both of those things can (or should) be served by the same device. But as soon as you have to build different things for different cases, that drives the cost up, both in R&D and in manufacturing (it's cheaper to build 1000 of one thing than 500 each of two things).