What do you think the modern day exchange rate of Gil should be? I'd say that there are 10 Gil in every £1 (I believe the equivalent of that in dollars is around 5 Gil in every $1.) This does mean that some games are considerably more expensive than others, but the amount of Gil you receive from battle is relative.
That brings me onto another topic I have been wondering about. How do the characters get Gil from defeating enemies? Why would a monster be walking around carrying a wallet? This issue was 'addressed' in FFVIII with the introduction of a SeeD salary, but then it returned to the previous method in FFIX.
Any thoughts?