While that does happen, it is about the same frequency as winning the lottery. If you are going to start your own business you better do it realizing that you will not be the lottery winner and for you like me, will have to roll up your sleeves and get dirty for a few years before seeing the hopes of some sort of positive outcome."Most people don't know that the Founder of Groupon flopped around in the group buying space for years before he conceived the Groupon business model. Or that Twitter was preceded by podcasting software called Odeo. There are tons of examples like this. If you are building something, take a deep breadth and keep plugging away everyday. Good things take time to build. People have to discover you. When they discover you, they take a tiny bit of ownership in your success and they spread the word in a way that is much more powerful than any paid for marketing message.
Overnight successes take years, and a big splash at a conference can't do it for you.