True off-road is very popular, and that's the issue....loyalty and taking it for granted is and always an issue that plays offroad....racers get upset or lose and then no big deal I will go xxx track and be at no lost....
Where onroad if done correctly you will build a strong loyalty cause once you invest into a $500 TC you want to run it...and that's always in your mind that support is needed to keep the doors open. Thus building the loyalty and dedication to show up and race....
But you have to maintain classes and rules...structure is so very important
example we have had the same rules for TC 17.5, USVTA and 12th scale 13.5 for over 3 years...USGT has been changed for club racing to GT21.5
but this always gives ppl and new racers a solid understanding of what is to be expected and this helps in the long run