For a game that was in development for so very long, 12 million seems like a surprisingly small investment. Certainly not enough to keep the studio running for all of those years.
On another note. Take two has filed suit, claiming it pumped over 12 million bucks into production. This is the worst death of a company yet. http://kotaku.com/5255220/take+two-sues-duke-nukem-forever-devs-over-failure-to-deliver