I'd be more inclined to say it was due to the stab in the back type policies by none other than ASRD. There would still be a very active AURS if it weren't for ASRD closing down all the trails around us no matter how much effort and time the members of the AURS put into trail work. I'm sure if you asked anybody that had been involved in the AURS for many years they'd probably echo my same feelings.
This is a lot closer to the truth. There was no more "in fighting", that doesn't happen a lot when two people can work together for a common goal. The problem was trying to get more people seriously involved on the process. It's a lot of work when you don't have any help. Everyone bitches, but doesn't step up to the task. I don't blame anyone either, Like Gun said, it's hard to have any interest when they close all our trails and turn their back to the one organization that has brought all the users together for the last 15 years, to do THEIR job out there. As for the future, who know's. And yes, there is still some money in the bank. It will stay there collecting interest for now.