I have to disagree on the points raised about Kickstarter for one simple reason (at least where video games are concerned): if you raise your money that way, you don’t have to hand your intellectual property rights over to your publisher. Those rights are usually surrendered as part of the deal a fledgling studio has to make in order to get investment.
Also, there are certain genres that simply won’t sell well enough to attract the interest of a publisher. When was the last time you saw a decent cyberpunk game that wasn’t based off of an existing franchise? How about a space combat simulator, when the last good one (Freespace 2) only sold 30,000 copies and was one of the nails in the coffin of Interplay? Hell, even Obsidian has had to turn to Kickstarter to make a Baldur’s Gate-style game, and they have a whole bunch of the people who made Baldur’s Gate in the first place.