Oh man, I am curious how that is. I used to do in-home tech work when I was much much younger like 20ish. I didn't realize it then, but thinking back on those experiences I often had housewives that were creating their own websites, um... flirting with me... I'm kinda glad I didn't notice... then.. So now I'm curious, do you see that?
Residential break/fix is always a hot topic for small computer business owners - some people make it work, others get stuck with "residential break/fix is dying." There's also the question of having a storefront and employees.
I think any on-site is going to vary widely by where you are, the demographics of your area, and the size of your service area. It's too easy to get into traveling half an hour or more to get to a customer, and if you're doing that without trip charges then suddenly a 1-hour visit turns into 2 hours of your time and halves your rate.
That was in 2011 - I retired and started doing in-home tech support for little old (rich) ladies and gentlemen. I haven't looked back :-)