Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Auckland (79% of total searches to North Island). The next most popular destinations are Wellington (12%) and Rotorua (7%). Searches for hotels in New Plymouth (3%) are also popular.
KAYAK users have found double rooms in North Island for as cheap as RM 72 (Auckland) in the last 3 days. The average price is RM 720.