The best ball in terms of price for me, is the 9 pack of Wilson US Open extra duty you can get from Big W. It's $5 a can
We get ripped off for everything here.. Not just tennis equipment and apparel.
I dont think the Slazangers are as good as they used to be, still very good balls though.
I don't mind the aus open wilsons at all. Where I pay comp, everyone plays with the wilsons or the slaz, so I just buy the same.