Without delving into the details that create the profit i.e. takeout margins , field sizes etc then Wagering turnover is one of the metrics to measure the success of the things by surely?
I stand by my opinion , they are an absolutely awful look for racing, if they are so good the industry should be begging for racing on them, but that is not happening.
I still believe the surface ARC is putting in was/is the best solution for the industry, given participation and horse numbers something like that will quickly make the AWT very insignificant .
As for training solutions , there are many other options that could have been created for the money thats been spent.