Elvin Eldic, from Travelex, said: "It makes perfect sense to continue the celebrations with loved ones, while sharing the costs."
But it's not always simply a matter of saving cash. In the new borderless world, we're more likely than ever to meet and marry someone from the other side of the planet. It can make choosing a wedding venue a tricky affair.
Once  the in-laws whose homeland didn't get hosting rights for the Big Day have flown all the way around the world, it seems polite to invite them to stick around for a few days afterwards.
Which was how I found myself in the south of France on someone else's honeymoon.
Kiwis are surely more likely than most to find themselves as the third wheel on a buddymoon. We travel often, go further than most and have a tendency to settle in distant lands (often in nice jobs). Everyone has a couple of mates living in London or New York, lured by a local job, then secured by a local love.
If you're there after the big day, make sure you give the happy couple a little time to themselves.