The price that's set in my mind is the cost of cigarettes in vending machines in college. It was £2.30, and it could be achieved by 4 or 5 people just getting their loose change out of their pockets. Now it's £12 quid a pack, and you have to be 18 to buy them, and they have to be hidden behind a grey curtain by the newsagent, so you can only ask for brands that you know of. I'm actually amazed by the youngsters who smoke, as I think its now cheaper to be a regular weekend user of cocaine, than it is to have a 20 a day habit.
I remember after my GCSE English mocks, going to the news agents and everyone buying a hamlet for 16p to celebrate.