It is easier to make YT videos than it used to be, technically at least; a lot has changed in the last 15 years. My channel has almost 30,000 subscribers, and nearly 3,000,000 views. We have over a hundred videos there. But I made a conscious decision to not monetise the channel—it's free information on our work, in self-contained 5–10 minute programs, and not simple teasers for pay programs, as many YouTube videos are.
We have a pay-download channel on Vimeo; this is where we make money (that, my books, and workshops). We regard YT as a loss leader, as well as a way of making our work available to those who can't afford the pay downloads (which are inexpensive anyway). Volume is the key to making a living off the net.
In the studio (first floor of our house in Greenwell Point) I use a four-camera live-to-disk mixing and sound recording setup—we can record an hour program, top and tail it, and upload to the net in a couple of hours. We do not do multicam editing any more; this live-to-disk approach has revolutionised our work. We were early adopters of the BlackMagic Design ATEM studio mixers.
As for making programs about living on our boat: I simply cannot imagine how people do this—at least at our stage of experience, we are too busy actually navigating and driving the boat! If I were to make programs aboard some time in the future, I would use a number of small, fixed cameras plus a body-mounted one for the skipper's point of view, and use the latest BMD portable mixer to cut it while recording. And taking a third person with us who could do the mixing would be a lot safer, I think.