Holding their land was costing section sellers 5 per cent annually in lost opportunity costs so they would be better to discount by 10 per cent rather than waiting for two years to get today's asking price.
Some Islanders were motivated and dropped their prices significantly, sometimes below CVs, but the two most popular price brackets on the island were $300,000 to $500,000 and $1m to $2m.
Mr Dickens compared Waiheke to Akaroa near Christchurch, where extensive efforts were made to stop development and protect the environment and scenery, but affordability was constrained.
"Lower paid workers and many of the children of the current residents were being priced out of the market," he said of the Canterbury township.
"It is simple economics - if you limit supply in places where people want to live or have holiday homes, prices will increase and an affordability problem will develop."
He said the consequences of an affordability problem were slower population growth and an increasingly elitist population.
"Home ownership will increasingly be the domain of the small group of wealthier people who want to live or have holiday homes in the likes of Akaroa and Waiheke Island. It will be interesting to see whether defenders of the environment against development like the social engineering their successes will cause - creating more exclusive housing markets."
Waiheke people were better educated than other Aucklanders but poorer. Their median annual income was $23,500, 12 per cent below the Auckland region's median $26,800.