Why should I pay more than $150 for a MLS flat fee listing?

Most flat fee MLS offerings on the internet today will not be around in one year because; (i) there is no profit in flat fee MLS listing unless ZERO service is offered; (ii) there is no chance of profit unless the flat fee MLS company has invested resources to build MLS listing software to efficiently manage listing changes, etc. (most do not and are just websites); (iii) at $150, there is no money to service the account.