Yes, but the point is, if the process of paying is a ballache (counter-intuitive), as Geoff has outlined, then I don't want to be sat in my car behind some dweeb, waiting for him or her trying to work out how to use the machine, before I can get to the pump and fill up!
It's the same as it often is now at ATM cash points, and you're stood waiting behind dickheads performing all their monthly business transactions, with about three different debit or credit cards, when all you want to do is withdraw a tenner!
That's why at a bank I always go the (few remaining) tellers that are there, to carry out my business, even if I have to wait in a queue, no matter how hard the staff try to direct me towards the internal ATMs.
At a filling station, I simply want to rock up to my chosen pump, fill up, and go inside and pay... And the stations I use are rarely that busy that I can't get served, and out, in minutes.
I'm just dead against the replacing of human beings with machines becoming the norm (as no doubt will happen sooner rather than later), as a) it loses jobs, and b) sets a dangerous precedent for us slowly being controlled by machines.
In this day and age, society needs to retain its 'humanness' as much as possible, before machines and computers take over completely!!
Marco.