The age of *A* domain has virtually nothing to do with it's value. However ...
The age of domain
s in general, on scale, is one of many factors domainers look at to weed out the crap. It's a probabilities thing.
Basically if a person or company bothered to pay renewals on the domain for 15 years, then that increases the probability of it being a good domain. But to be clear .. it does NOT mean a domain is good if it is aged .. nor does it mean that a domain is bad if it's not aged.
It simply means that if you take 2 random domains, the older one will likely be better.
That being said .. within the domainer community the importance of that fact I think kinda grew into it's own thing .. and as such there are actually some domainers who do put more value on aged domains ... and the irony of that .. actually means that indeed within the domainer community there actually is more demand/value on aged domains simply because of a domain's age.
So yeah .. indirectly aged domains do have a tiny extra advange just because they are older .. but it's based on a false narrative that became self-fulfilling. That being said .. I don't think it changes the value to justify over paying for them.
So in terms of wholesale pricing there could be a little bump ... but it really doesn't make much difference to end users in many cases. Although again .. if a potential buyer isn't set on a domain yet and is "window shopping" .. if the domain was tagged "aged domain", then it could be a factor for the buyer because he believes the "hype" and marketing even if at the end of the day age makes no difference to end users.
In fact .. age could technically be a bad thing for end user buyers if the domain had a questionable history with spam etc .. could make for problems sending out emails or getting ranked in google .. but in the end that's not really a factor in most cases.
Where age can be a huge factor is when searching for expired domains ... if you only have 10-15 minutes to search, then you're likely to find better domains if you filter based on age.
That being said .. some of my best domain VALUE PURCHASES have been domains in lower age tiers .. the ones that other people don't have the time to search for so I can grab with little competition or even at closeout.
The one instance where age obviously does not and can not apply .. is "future tech" .. which I would say is what category your "Handsfree Crutches" falls into.
Recent trends are things like drones, crypto, cannabis .. none completely new .. but there has(/had) been such explosive growth in those industries that there were not enough existing domains to fill the demand .. so then the only choice is to handreg.
I almost exclusively buy expired domains at auction and closeout .. however .. every now and then if I'm watching the news, I'll jump to try to register something that looks like it could be a future business or trend. Really does not happen often though (like twice a year .. lol) .. usually 90% the domains are taken ... looks like you got lucky!