On a Jetstar flight a couple of weeks back, I asked a flight attendant for a cup of water. Which is pretty much the only thing you'll get for free on a low-cost carrier.
The staff member was moving from the front of the cabin towards the back and no one ahead of me - at least, no one that I'd seen - had asked for a drink of water (I know, I'm such a rebel, right?). After I asked for water, a whole lot of people behind me did the same thing.
None of which would be worth commenting on, if not for the fact that it underlines a psychological trend that can cost you money.
Researchers at Stanford University found that air passengers are 30 per cent more likely to make an in-flight purchase if the person sitting next to them makes one first. Meaning, you hadn't planned on buying snacks, but when your neighbour hands over a couple of bucks and tucks into a packet of chips, a faceful of salt 'n' vinegar suddenly seems like a good idea.
With the low-cost model soaring, ancillary revenue - the cash airlines make from food, drink, entertainment packages and upgrades - has become big business. Globally, airlines made $46.5 billion from ancillary sales in 2013.
