I don't know about a mass market - but I live in rural Oregon, and booking an appointment with a local tradesperson results in them showing up 4 to 6 months out

I don't know about a mass market - but I live in rural Oregon, and booking an appointment with a local tradesperson results in them showing up 4 to 6 months out - there just aren't enough of them. Sometimes you can convince someone to drive the 2-3 hours each way from one of the nearby cities - but most these guys don't relish 6 hours driving to install a fan. So I use YouTube A Lot, and boy would I like to be able to pay someone to walk me through things. And I suspect there a a fair number of people in spots like me (if not so extreme). And I suspect there are a lot of Urban DIYers that occasionally get in over their heads and would use this service. But quantifying this market would be hard. I do think the ability to recreate the 3d environment, from the sensors on a device in the house would be pretty critical to this working. And the ability to show the customers in AR exactly what needs doing could be a difference that matters. Still I'm not quitting my day job.