"Yet the truth is, Broussard’s financial freedom had cut him off from all discipline. He could delay making the tough calls, seemingly forever. “One day, Broussard came in and said, ‘We could go another five years without shipping a game’” because 3D Realms still had so much money in the bank, an employee told me. “He seemed really happy about that. The other people just groaned."
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Learn to Let Go: How Success Killed Duke Nukem | Magazine - It’s not about what other people are doing and outdoing them, it’s about doing something you love and making it great. Broussard clearly thought he had to outdo everybody to make something great, so he spent all his time outdoing and never did ship Duke Nukem Forever.
At least the talent that worked for 3D Realms are working on other projects now (hopefully).