Well the surveys we've been doing at tracks basically come in with one result, races on television have way too many commercials with multiple breaks within minutes of each other and at-track activities are expensive and long. $99 for a 3-4 hour race with a lot of it being single file. On top of that NASCAR's ratings tanked after the introduction of gimmicks to the sport, like the playoff system, when that didn't increase views they went to more people in the playoff then to elimination racing and now they are doing segments, what this has done is drive off the older fans that were bringing their kids to the track, meaning no new millennial and beyond fans can be made because millennials just aren't going to the track.

EDIT: Now in another gimmick announced by several tracks, in order to make that expensive ticket more attractive qualifying and racing will be done the same day, Sundays usually.