I'm no expert on stock car racing, although as a racing junkie, I follow it more than most people.

Anyways... I think it comes down to the fact that back when ARCA was drawing those huge fields to the dirt miles, all the cars were old, used NASCAR Cup cars. That formula enabled a large number of small business owners to field a car. Today, I don't believe the rules allow for that. I am sure that the current ARCA car differs from a Cup car in engines and bodywork, but not sure what else is incongruent. That takes the small-businessman out of the equation as the prep work for a car is more intensive and better suited to professional race teams.

All those small guys are in the K&N series these days, which is a shame, because those guys loved to one-off at places like Michigan and Pocono with drivers who never would've got the opportunity to run a superspeedway, otherwise.