You say that Andy, but if you apply the Mars bar scale to it, stacks up. In 1992 a Mars bar cost 24p and the list price of a Golf GTI 16V was £12,500. A Mars bar today costs 60p, so 2.5 times as much. Multiply the price of the GTI by the same amount and you get £31,250.
Considering that the Mars bar has got smaller and the Golf has got bigger, it could be said that the Golf is better value than it was back then.