These recent Kickstarter campaigns that raised multiple millions for games that everyone (but the publishers) wanted made seem to me like a groundbreaking development. We've reached a plateau of sorts with the high-stakes AAA gaming roulette, where the publishing companies have incited a revolt from the people against maximizing profits with the cost of everything else that goes in a game. While Project Eternity raised a million dollars promptly, this kind of project would still be a very risky endeavour for a publishing company, and probably wouldn't make much if any profit. We have to realize that this game receives some of its money because of an emerging 'rebellion mindset' against the traditional publishing company model. That doesn't take away from the benefits of the crowd-funding model at all, and seems to be a more healthy way to organize a game project that requires this much creativity. Someone has to believe in the game creators to break new ground, to give them the time and space to work,and this time the people are the ones to do so.
If this game was published through the regular channels, it would be very difficult to get as much interest focused in it as it has already been gathered in this short period of time. It's also a logical way of looking at your target market -- The generation that played these sorts of games first with their parents' money, and later scraping by as students, have grown up by now and piled up enough wealth that forking over monetary support for promising projects isn't that much of a strain on the budget.
Lastly, Project Eternity has a huge responsibility carried on its shoulders, as does Wasteland 2, Shadowrun Returns, etc. If these projects are favorably received by the audience, I think it will build an enormous momentum for the crowd-funding model of game development. The other option is that it will go the way of the US space program, and we'll have to take another look at it some 30-40 years down the road. No pressure though!
Oh, and by the way, I checked the intro video on Kickstarter for Project Eternity, and Josh Sawyer (I think) mentioned that Obsidian wants to put more mature themes in the story. I will be extremely disappointed in everything you stand for, if this is not delivered. You can leave out the sex and the violence if you want, since they're mostly used for the scandal effect, but please do not shirk the mature themes.