Each year it just gets bigger and bigger and Ashburton's Motorhome Extravaganza, 2007 looks likely to be no exception, says organiser Murray Meadows.
The event, now in its fifth year, broke all records last year when almost 160 motorhomes of all shapes and sizes went on sale.
Like any big event, food plays a major part in keeping the public happy and Mr Meadows is looking for a community group or charity keen to make money by running a food stall at next year's event.
"Last year I put the call out for a charity to do this and I didn't get anyone who wanted to make money. Not one charity came forward, so I just picked one and gave it to Townwatch," he said.
In other years charities have reaped significant benefits from selling food - sausages, pies, sandwiches, it doesn't really matter as long as there is plenty of it, Mr Meadows said.
"If I don't have any applications by Christmas, then I'll just pick one."
Virtually all trade sites for the February 17 and 18 event are now booked and reservations for sales sites by private motorhome owners are filling fast.
Five years down the track, Mr Meadows said he is still amazed at the popularity of the event, which is now the most popular in the South Island.
This year he's opening the event up to motorhome owners who simply want a weekend away, with a camping area set up, Saturday night entertainment laid on and roast meals and desserts provided by the Mid Canterbury Rugby Supporters Club.
For sellers, the event is about showcasing their motorhome and hoping to attract a buyer.
While some sales are made on the day, many others are concluded weeks and often months after the event.
"One person sells their home and it just snowballs from there," Mr Meadows said.
The New Zealand Motorhome Association is the fastest growing club in New Zealand.
Popularity is now almost evenly divided between the traditional cab over campervan and the converted bus in varying sizes.
Increasing numbers of motorhome owners are now choosing to spend several months on the road each year and are opting for larger buses, he said.
"There are more and more people selling their homes and putting all their money into a motorhome and not having a home base."
Fifth wheelers were also becoming more popular, he said.
Gate takings from this year's event will go to the Ashburton Regent Theatre Trust.
Any charity wishing to take the opportunity to run the major food stall at the motorhome extravaganza can apply by contacting Mr Meadows on 027 410-0042.