I don't see these results as overly concerning when taken in the context that tcf provided. We play half our games at a place that holds 10,167, and also played once at Webster Bank Arena, which holds 9,274. On a capacity basis, our regular season results last year based on my rough calculations were:
Gampel (7 games): 96%
XL Center (7 games): 84%
Webster Bank (1 game): 98%
The XL Center results include the winter break game against Coppin State which only drew 8,260. Exclude that game and the XL Center capacity jumps up to 89%.
Granted, places like Kentucky and Creighton manage to sell out on a nightly basis regardless of opponent. We're just not on that level as a fanbase. But, in a down year, we averaged 14k fans at the XL Center against AAC opponents (SMU, Cincy, USF, Tulsa, Temple). I'm struggling to get too worked up over that.