for most applications i hypothesize that the cost of writing and maintaining your own backend will far outstrip the cost of the occasional migration.<p>if anything, the pressure is towards frontend:backend isolation, not away from BaaS. (in the spirit of segment.io for analytics.)<p>one ironic signal here is that money is bad for survivorship. facebook killed parse because it doesn&#x27;t move the needle for <i>facebook</i>, but parse might have been a fine &amp; profitable standalone business.