Originally Posted by mattm

All of the above?

Really I believe that less people are racing because they suck at racing. Said with a little more nuance, at the beginning of the season everyone has big dreams; they either realize them or have them crushed at some point in the season. By the end of the season, many have given up.

So people suck at racing, plus this looks like a hard course. I probably shouldn't even try but I'm dumb enough to try it at least once!