I don't have anything much to add that hasn't already been touched on, but (shrug) that's never stopped me before...
I'll add a +1 to the possibility of it being attractive to people who live with a chronic illness or other disability. That's an under-appreciated market (a great many of the kitchen gizmos you've seen on late-night infomercials began with that market, and then expanded into the mass consumer sphere). Also, there are a lot more people with disabilities than most of us realize, not to mention how many of us will be temporarily sidelined by illness or injury at some point in our lives.
The hotel breakfast-bar idea seems plausible to me as well, at least as a niche/novelty item. I doubt you'd place them at every Holiday Inn or Best Western, but as a very small company you night not need a large sales volume to do your 401(k) some good. Here in the Kitchen Consumer forum you'll see a very similar request for feedback (a precision cooker) by a European entrepreneur who has been successful in just such a modest fashion.
That said - and far be it from me to throw cold water on anyone's dream - it could be argued (for reasons too obvious to require comment) that you've chosen the Very Worst Possible Moment to be prototyping a new electronic device, having it manufactured, and bringing it to market.
ETA: Took the time to look up info on the prevalence of disabilities in the US, then forgot to include the link.
https://www.cdc.gov/disability-and-health/articles-documents/disability-impacts-all-of-us-infographic.html
