Always gunna be the way, if you have a big winner then it's always gunna be funded by lots of losers,
From a racing viewpoint the big stakes do add credibility to racing, they are all trying, one wonders if they got rid of appearance money beyond say fifth if the racing would be better in all classes.
As for the turnover I'd say 50 thousand is probably not bad for a race at Cambridge, I dont think Riverton will get that much tomorrow, maybe I'm wrong.
A big percentage of the betting was on Self Assured, reason being most thought he would win turned out he did, one thing the TAB have to stop doing is restricting large punters betting fixed odds, should be accepting all bets, it's up to them set or adjust the odds as fair play as invariably the house usually wins more than the punter