Whilst never being someone stuck in the past, I am sure there is some mileage in some of the 'model' that they had then being transposed over to today..
The pot that all riders share is not as big as it was pro rata in the 70's yet there appears to be many, many more full time professionals than there used to be..
Even when "all was good", and riders could earn some very good money, it was mainly the heat leaders (in the top division only), who were "fully pro" and the rest did it as "well paid sideline" to their usual job, and could make a months salary from their 'proper job' on a good night...
The ultimare irony is by the very way the Promoters have run the sport over the past two decades or so, they have all but devalued their own competitions to pretty much zero kudos status yet, I presume, expect riders to turn up with top 'expensive kit' to compete for these 'prizes' which can only result in higher salary expectations for the riders to meet their costs..
A strange operating model to follow..