Originally Posted by
BlackPeter
Don't know or use gaspy, but from my experience in the real world I have never seen a less than 16 cents difference between NPD Hornby and e.g. the BP station down the road. Normally it is more, but it well might be that other NPD stations have different (higher) prices. Anyway - MGL Hornby (though not advertised and no road signage) is typically still a handful of cents cheaper than NPD Hornby.
I understand that the main purpose of these discount systems is - next to collecting data - to get customers to buy other high margin stuff.
Can't speak for these customers, never bought food or similar while fuelling up a petrol station ;) but given that every Tom, Dick and Harry is offering these days the same discounts can't I really see why customers want to jump on just another 6 cent system.