IMHO NOTHING: Sure they take about ten of among the best teams and drivers around the country. But most of the major events either existed before WoO or were not WoO events to begin with. In fact it's restricted many of them to WoO only. There used to be USAC and All Star shows before the Kings Royal and the Royal itself as unsanctioned.

Nothing's pleased me more in the last few years than seeing non regulars come in and beat em and beat em often. Larson, Bell, Courtney and most of those that do have logged tens of thousands of laps in USAC sprints or midgets. Heck they've been doing it to NASCAR for years.