I stated publishing ebooks at Amazon and Smashwords in 2010, selling short stories that I had reprint rights for at a buck each. I made more money from ebook sales than I did from first serial right sales. Sales tapered off as I took a two-year break (2015-2016) from writing and publishing to focus on my tech job that pays the bills. Short content for a buck is dead as a business model. I'm consolidating my 50+ titles into fewer titles, ordered new cover artwork, and raising the price to $1.99 for each. I should have that finished by the end of the year.