kindle and the like have given the opportunity of being read to a wide base of people. no longer does a person have to sit on their work because it will never be published.
Kdp select has of course tried to wrap up the market, but it has also given traffic to many people like myself.
my subject, being tucked away in the deep vaults of the internet, would never have got the traffic it has without the 'select' program.
it is a good feeling to know that a few hundred people are reading your book!