Don't 'good old days' me, young lady. :-0 I paid $269.r/t to Luxembourg from NYC in the 60's :-)
I was able to take my family to Belize in 2005 for $215 each on US Air out of St. Louis. Don't think I'll find that one again.
In 2006 we went JFK to Cologne, Germany for $226 each. The flight was free, all we paid was the taxes and fees. Don't think this one will show up again, either.
Of course, the reason I'm on this board right now is that we'd love to make it to Belize for Spring Break next year. The prices are depressing!