I looked into MoCA as I have some coax runs in my house that I don’t use, but when I saw how much power the adapters drew 247, I ditched that idea quickly. Instead I used the old coax as a pull rope to pull Cat6 through instead.
I wish MoCA was around when i was wiring up my house. I have a lot of abandoned COAX which was for cable-TV in my house i could have used.
I actually looked into this many years ago as i have a cable modem, so ethernet over coax via some sort of "modem" should be possible. Sort of a throwback to the old 10-base-2 system?
Wasn't able to find anything that would ave worked so i caved in and eventually ran ethernet.
The annoying thing about moca is it's still really expensive and the boxes are huge. It would be nice if you could get them in a form factor where they replaced the coax plate/box, even if they stuck out of the wall more.