The huge opportunity for startups currently is in planning, campaign analytics, and prediction markets for campaigns. Crowdfunding needs to be quantified like the financial markets so that information is more readily accessible to buyers and sellers to drive efficiencies (as a buyer it's hard to evaluate the trustworthiness of the seller, and as a seller it's hard to evaluate what the unexploited opportunities are).
Eventually crowdfunding might overtake the ownership industry and we can live in a real open source economy.