Even if you are expecting financial gains self publishing is still very valid. (I am talking from personal experience where my self published tech courses make

Even if you are expecting financial gains self publishing is still very valid. (I am talking from personal experience where my self published tech courses make more money that my editor published ones). Dont forget that even though editors do the marketing for you you only get a small fraction of the total sales. And also they might not be very good at the special niche you are targeting.