I've found the Transport Agency's statistics a bit difficult to unravel - and they take a while to respond to requests for information - but it seems there are more than 30,000 motorhomes and 50,000 trailer caravans, with about 3000 more being registered each year - making for a pretty impressive fleet.
The Motor Caravan Association has 22,000 members and reckons they spend an average 72 nights away a year, which represents a lot of people out there cruising the roads and enjoying stopping places. There are also around 3500 motorhomes available for rental, which are mainly taken up by foreign tourists.
Part of the reason for their increasing popularity has to be the improved comfort. When my wife and I last used a motorhome, for a family tour of the South Island 25 years ago, it was a fairly spartan experience (though we still had a great time).
But the Kea Dreamtime we took to the East Coast was like a luxury apartment.
If you're interested in seeing the range that's available these days, a great start point is the Covi Motorhome, Caravan and Outdoor SuperShow, which is on at the ASB Showgrounds, in Greenlane, this weekend (from Friday to Sunday).
There'll be everything from little family-friendly caravans to opulent ultimate motorhomes like our Dreamtime.
It's worth a look. If, like me, you haven't checked out modern motorhomes for a while, you'll be amazed at what they offer.