Try the Mitai dinner/show in Rotorua for an evening that's touristy but genuine.  There's plenty to eat but bring cash for alcoholic drinks.  Performers are the "real deal."  The owner explained that his show provides a way to assure the Maori culture and history goes on to the current generation.  It's an educational as well as colorful and entertaining evening. After the haka event, make your way as quickly as possible to the Maori village to get the best possible seat for the Maori cultural performance.

 Check for a discount coupon. The i-site is a good place to check. The "Jasons Visitor Guide ... Rotorua .... with Maps and Vouchers" will usually have a 10% disount coupon.

 Here are a few links to a variety of information about the culture and heritage of New Zealand.

Maori Culture

New Zealand's proud musical heritage

Culture Introduction - NZ

NZ History Online : Culture and Society

Hangi - traditional Maori food

Pounamu is to be bought as a gift, don't intend to buy one for yourself.