I think, particularly in the video game space which has seen some of the biggest backings across all industries/verticals, very few successful "crowdfunded" projects hit the market, and those that do generally become available to mainstream consumers with the backers receiving little in the way of truly worthwhile bonuses for fronting the cash.
After being a hugely avid Kickstarter at the get go, I've long since abandoned the site as failed product after lackluster product either died or left much to be desired when it was released. Anything worth owning will eventually be made available for general purchase in a form far superior; it's like someone took the worst parts about buying first-gen, cutting-edge products and exacerbated them.