My usual Friday night is spent racing 1/24th scale Group 10 slot cars, at Modeleville Hobby which is probably the only place on the planet to have 5 slot car tracks up and running! And they have at least 2 additional racks that they will install if they had the space.
Modelville Hobby
And right next to it is LenJet HO Raceway that has 8 (at least count) HO tracks, including 2 of the only 8 lane HO tracks in existence:
Modelville Hobby-Lenjet HO Raceway