Also tournaments put a little pressure on you to go out and ski a set at the best of your ability and compare how you are progressing. Hard to do in practice, because we will run a couple of back to back passes or may miss and then shorten, not always ski down the line. I don't compare myself to others scores, just if I feel I'm improving under controlled conditions. Plus it makes us ski in conditions we might not do as a non tournament skier. Very easy to say, oh it's a little windy, I wait to ski.
Also if you want ability based tournaments, INT has them in the general area (Redding, CA).