In all my research into TSR's business, across all the ledgers, notebooks, computer files, and other sources of data, there was one thing I never found - one gaping hole in the mass of data we had available.
No customer profiling information. No feedback. No surveys. No "voice of the customer". TSR, it seems, knew nothing about the people who kept it alive. The management of the company made decisions based on instinct and gut feelings; not data. They didn't know how to listen - as an institution, listening to customers was considered something that other companies had to do - TSR lead, everyone else followed.
...
I know now what killed TSR. It wasn't trading card games. It wasn't Dragon Dice. It wasn't the success of other companies. It was a near total inability to listen to its customers, hear what they were saying, and make changes to make those customers happy. TSR died because it was deaf.