The only thing in MXers favor is LL and the structure of that racing, unfortunately.
20 minute practice, 6 or 8 lap motos and usually done by 3 or so .
Followed by a core group, about 150-200 similar to REM.
Series races take a long time to get established
There is to much competing for people's dollars today. No easy fix
I do agree that the AMA and Districts across the area dropped Mx about the same time the economy tanked. This has hurt MX attendance.