Catching the bus up there now. $55 return on Mana Bus. Coming back after the game - leaves at 23:00 so an hour in Hamilton - probably more than I need from what I have read in the past.
Saturday night out in Hamilton is great fun. Welli is the only city in NZ that is probably more fun at night!
Waikato Stadium is the best football/rugby ground in the country (location, view etc taken into account). You'll regret not staying later!!!
Its the sort of ground Wellington should have had instead of the "windtunnel".