"So yeah, it's interesting times."
Trewavas bought a ticket himself, but was not the lucky winner.
He said $30 million could get someone quite a long way in Taupo.
With that kind of money, the winner could buy a motel or hotel complex, a bungee jump operation, a jet boat operation, "a nice big boat", and a lakeside home - and hopefully leave a little change.
If the winner wanted to splurge, they could spend a week in one of Taupo's two most "prestigious" lodges - Huka Lodge and Poronui Lodge.
But Trewavas hoped the winner might be "civic minded" and fund projects about town, such as upsizing the event centre, upgrading the Great Lakes Centre, or providing some type of tribute for the entrances to Taupo.
Huka Lodge spokeswoman Jane Corbett-Jones said someone wanting to spend a large amount of money in the town could grab a group of friends and stay at the Lodge's Owner's Cottage.
For a fun time with seven friends, the price could be more than $14,000 a night in the most expensive season - barely a dent in $30 million.
"You can have your own private chef on hand to whip up a five-course celebration degustation menu nightly," Corbett-Jones said.
The group could then take a helicopter ride over Tongariro National Park, the geothermal valley of Wai-O-Tapu, the sacred Mt Tarawera summit, and White Island, among other things.
"Back at the Lodge over the next day or two, shout your friends to a few rounds at any of the nearby international golf courses, charter your own boat for world-class fly-fishing on Lake Taupo after private fly-casting lessons, take over the tennis or petanque courts for some afternoon fun or just grab the keys to an Aston Martin or Lamborghini, which the Lodge can arrange, and take off for a spin to dream about how you'll spend your change," she said.