You are not likely to fund your business all the way to cash flow breakeven on the money you get from an accelerator program or winning a contest (although I'm sure someone has done it). Funding startups is like climbing the stairs. You have to go up the first stair to get to the second one. These kinds of events/programs can be a great first or second stair for an entrepreneur. It can give you the money (and connections) you need to get going and get somewhere and set yourself up for the next funding source.
Fred Wilson has been a venture capitalist since 1987. He currently is a managing partner at Union Square Ventures and also founded Flatiron Partners. Fred has a Bachelors degree in Mechanical Engineering from MIT and an MBA from The Wharton School of Business at the University of Pennsylvania. Fred is married with three kids and lives in New York City.