Playing on home soil has been beneficial to the Kiwis because aside from their intimate knowledge of the venues where they have played, they've also felt at ease away from the crease.
"Just being at home makes it so different and I think the ability for us to wander round and know what to do, to have places to go to so we can find a place to relax, makes a huge difference," Vettori said.
"Whereas normally you're cooped up in your hotel and you're a little bit anxious to play the game because there's not a lot else to do and this time round we've found ways just to get away from cricket and it's been a good thing."
In the lead up to the knockout stages of the tournament, Vettori said there wouldn't be much that changed in the side's approach given so much had gone right for them recently; they've won six from six at the World Cup.
"It is about trying to keep as consistent as possible and we've had a really casual-professional approach to the home summer and I think it's really key that we keep it going that way."
Vettori said he would likely watch bits of the quarter-final between Sri Lanka and South Africa in Sydney today and mentioned premier batsmen Kumar Sangakarra and AB de Villiers as some of his favourite players to watch.
As for a tip, he sat on the fence and offered: "Ask me after the toss."
Meanwhile, Vettori said departing bowling coach Shane Bond - who will be replaced on an interim basis by Dimitri Mascarenhas for the upcoming tour to England in May-June - would be missed.
Bond, who will finish with New Zealand at the conclusion of the World Cup, has been a driving force behind the improvement of the seam battery that includes Tim Southee, Trent Boult and Adam Milne.
"Shane's pretty meticulous," Vettori said. "I think the thing that he brings to the table is a work ethic and I think that's probably one of the things that the guys are going to miss the most; how much work he does behind the scenes."
