NCA nationals has a much higher attendance and I believe you have to attend an NCA camp to get a nationals bid so I would assume NCA camps have more schools.
You can have an in house NCA camp to qualify for nationals but it's not a paid bid and you can't compete for All American at in house camp.
By contrast, UCA teams don't get to qualify at the UCA College Nationals just by attending UCA collegiate camp. Instead, bids are determined by placement at last year's UCA College Nationals. The top teams get free hotel accommodations as well as free airport transportation. Also, teams can submit a video if they attend UCA collegiate camp but don't get a paid bid.
Interesting, but then it is actually a different team earning the qualification for next year's team. There can be a lot of turnover each year with graduates, transfers, internships.
