I work for a multi-billion dollar publicly traded company and I've watched this happen to a new product that our org launched last year. One big customer set the direction early on and got used to us building exactly what they asked for. As we've gained more customers we're having to tell them no more and more often and they're getting less and less happy. We're locked in to a long contract so they're not leaving anytime soon, but it's turning into a constant battle with them.