I totally agree with Kurufinwe. It's a bit too much right now, and many feel like "me too!" efforts that have been quickly thrown together just to jump on the bandwagon. The adventure game audience probably can't sustain this many fan-funded projects at the same time, neither monetarily or in terms of interest.
I also want to point out that DFA is by no means the first adventure game to go the Kickstarter route. The soon-to-be-released
Resonance ran a Kickstarter campaign
back in 2009. It raised $2k (which was actually not a bad result, though obviously it's only a fraction of the total funding of the game).