@jayski Nationals could add value by becoming more of an Expo event than just a competition.
If we chose sites where there are more than 3 lakes, like Okeeheelee or Bakersfield, ski and boat companies could have time slots where people could check out and drive/try the latest gear. This would give the sponsors more of a reason to invest in the event.
We could also make the US Open bigger and put more of a spotlight on it, giving people a chance to watch the best skiers compete in the evenings. Schedule the US Open so it's spread out over maybe 3 evenings, and especially make sure it's when the kids are there so they have something to get excited about and aspire to, and give them a chance to get pictures and autographs with the top pros.
Lastly make it more of a social event, with food/beer served in the evenings when the US Open rounds are being held. Give people a reason to hang out and enjoy the spectacle of the events, talk about the skiing they did in the day, the ski they got to try, or the jump Freddy just made, all over a beer with friends. That's an event I would want to go to.