We started competing using a tent, upgraded to a 20 year old pop-up camper, and last year got a Jayco Jayflight, but plenty of folks just use the anti-graavity lounger under thier EZ-up
If you have tent, we got by on concrete by filling small HD paint buckets with conrete, with an eye bolt stuck in it. Tie wrapped the stake holes to the eye bolts, and the tent stayed put