The obvious but difficult to answer question is, would they have received greater revenue from increased car counts if they did not have buybacks? In Stock, they would've needed 65 cars (+11) to make more money than they did with re-entry, and 40 cars (+4) in Super Stock.
I say difficult to answer because I have repeatedly seen and heard over the years, "I would've gone if..." My concern is that if it wasn't buybacks, there simply would've been some other excuse for not attending.
I went, I raced, Myron conquered. (again).