I’ve missed going to Knoxville for the nationals 1 time since ‘87, but I’ve only stayed for Saturday once. When I first started going I had a car so I’d go out for Wednesday & Thursday to spectate then come home to race around home (sw Ohio). I got in that habit and continued even after I quit racing myself.
It’s a great event that you could even take a non fan too and they’d enjoy. I’ve been out there 4-5 times this year and wouldn’t rule out one more.