"It's a common sense thing, more than anything.
"Participation is higher in Tauranga and the facilities are world class." Since coming back to Wanganui after 11 years away, Berridge said he had enjoyed working in the community and trying to bring "fresh ideas" to the town.
He was involved in everything from youth basketball to training the Steelform Wanganui rugby team, to founding HoopNation and doubling its entry numbers in four years, to running Rise of the Fallen, which was headlined by his cousin and New Zealand's former No1 ranked fighter Robert Berridge.
Some of his dealings with WDC left a "bitter taste", as Wanganui needed to find a way to embrace more concepts, he said.
"The city's got a lot of things going on where it's still trying to find its identity.
"There was a lot of negatives happening more than pros at the moment.
"Even with Air New Zealand pulling out, that's got to say something."
Berridge said it was not necessarily the end of FightFit, as he was "pleasantly surprised" to be approached by four people interested in taking it over.
It was possible he could leave the equipment here and set up a fresh FightFit in Tauranga to begin the start of a franchise chain.
"It has to be a good fit [in Wanganui] too, it just can't be anyone."
The Berridges will leave around July 22.