Being busy is often an excuse for not doing something you should be doing. For me it has often been an excuse for not thinking, managing, and planning properly. Working hard is no longer the route to success it once was perceived to be. In an era of outsourcing and offshoring, success definitely does require hard work, but what is way more important is smart work. Basically, all the hard work will be outsourced, with just the smart work remaining.
If you want to have a successful future, you must learn to become a better manager, both of yourself and other people. The rise in offshoring, for example, leads to a rise in the need for clear planning, and precise project management.
The world is full of busy people, but there is a definite lack of quality planners and project managers. Stop measuring yourself on how busy you are. Start measuring yourself on how effective you are.