Hard to know whats going to happen in time with exchanges as while 1% commission sounds great the majority of players are traders and markets quickly reach critical mass on low comm leading to stagnation. Betfair have the best model going forward but are still too greedy on big players laying bets. :drink:
I think 1% is excellent and most do not stop to realize how much more money they would make if they took advantage. The more the merrier.