It may not be "the biggest prize money" and the huge upside to that is you don't have all the bull or entry costs that go along with the big money comps. I'll say it again, this is a great way for 1st,2nd,3rd timers or someone who's even thinking about it to do a comp in front of judges with low cost/low pressure/low temp.
I'd guess you could say that it's a "low and slow" event.