Nascar races bring tons of money to the tracks whether owned by Nascar, SMI, or the legacy independents such as Indy and Pocono. You are right... these tracks are not hurting financially because the cup races are gold mines for them. And Nascar owns most of them so Nascar is raking in tons of money from the race track portion of the distribution. However, new tracks that host races are cut out of the gravy train. Road America didn't get TV money, because Nascar leased Road America for the race weekend and Nascar pocketed the TV loot. Same thing with COTA... leased by SMI for the weekend so SMI could pocket the TV loot. I suspect the same for St. Louis, Chicago Street Race, Mexico City and others. I strongly suspect (but have no proof) that Montreal balked at hosting cup races without getting any TV money, which would explain why we don't have Montreal on the schedule.
Which brings me full circle to my
first post in this thread... it is the team owners that are getting shafted by Nascar, not the track owners. And don't forget, Nascar is the predominant track owner, shifting tons of money from one pocket to another.
Since Nascar popularity peaked circa 2005-2007, teams have had increasing difficulty selling high-dollar sponsorships, and this has coincided with the emergence of costly aerodynamics and other expensive new technologies. The growth of the TV money has helped, but team ownership remains a borderline non-viable business model. Since the 2016 charters were agreed by Nascar and the teams, 22 of the 36 chartered cars have gone bust. This is not an economic track record that can attract the next generation of team owners of sufficient stature to replace Rick and Roger and Joe and Richard and Gene/Tony. We (and Nascar) are fortunate to have 23XI and Trackhouse arriving, but its not a fraction of what we need.
The racing world doesn't need two competing stock car series, but what it does need is one premier stock car series that spreads the fruits of their collective labors in a more equitable manner. The best way to get there with the least risk of catastrophic outside intervention is for the parties to settle the suit. I think that is the most likely outcome.