Render times are the bane of almost any A/V specialists existence. They always seem to get worse when you are working with a deadline so you are forced to do something besides what you wanted to, normally leading to a slightly inferior product.
What if everything you did could be done in real time with no very expensive upgrades or cards? How bout being able to edit in real time from a netbook while on the go? What if with a high-speed internet connection you could completely change the way your business works and how productive you technicians could be? As a formal A/V professional if I could have had all of those things I would probably have never left the business. The cloud gives you all of that and so much more.