I wouldn't even say it's just this. Consistency, high quality (in terms of writing, delivery, production value) and a boatload of other factors matter, too. As does the ethos of "authenticity."
Ben Eater and 3Blue1Brown are I think good examples of this. I doubt "the market" was demanding videos about higher level math with superb visualizations, or especially implementing a 6502 on breadboards, but these guys both made it happen. I doubt they're raking in the megabux, but they seem to be doing pretty well.
Ben Eater and 3Blue1Brown are I think good examples of this. I doubt "the market" was demanding videos about higher level math with superb visualizations, or especially implementing a 6502 on breadboards, but these guys both made it happen. I doubt they're raking in the megabux, but they seem to be doing pretty well.