... except if it's a mature product, like dropbox is, in which case the optimal strategy is to fire all the developers, just do bugfixes and security patches, a

... except if it's a mature product, like dropbox is, in which case the optimal strategy is to fire all the developers, just do bugfixes and security patches, and keep milking the renewals/recurring revenue from the installed user base until they all get around to migrating to something else. this is the inevitable fate of most products at the end of their lifecycle.