Two reasons: * expensive to scale * developer limitations This limited it to smaller scale projects, MVPs, proof of concepts where paying a little more for a

Two reasons: * expensive to scale * developer limitations This limited it to smaller scale projects, MVPs, proof of concepts where paying a little more for a certain range of developer productivity makes sense. Such is the case with rapid development platforms in general. When you grow you shift to wholesale-priced primitives that give you more control.