It's more of a business necessity then a philosophical point of view. The history of software development is littered with companies that failed because they s

It's more of a business necessity then a philosophical point of view. The history of software development is littered with companies that failed because they spent so long polishing the beautiful crystal tower they were developing that someone released a concrete one instead and everyone bought that, and then no one needed a crystal one any more. Unfortunately, it can be really hard to find out about these companies because of how hard they've been trodden into the ground by their successors, but Xerox and Netscape would be two high profile examples. Shipping constantly may not be the best thing for technology, it may not be the best thing for quality and it may not, at times, even be the best thing for your users. But if you don't, someone else will.