Self - publishing is a rapidly evolving industry with lots of competitors that are constantly throwing out new information. (cnet.com)
By 2020 I'm quite convinced this will be a big deal and there will be lots of competitors by then. (entrepreneur.com)
They don't really make the jump and figure out — These people don't really buy books and we don't know if they will, there are lots of competitors like $ 1 games, and these people might never get into reading books. (dealsagar.com)