Such an index may work in some parts
of the world... But in the Caribbean... Gezzze I can't see something like that ever being accurate and updated... or undertaken
They are on island time mon!
All areas have their own "Prime" season and off seasons, holidays moving event days where fees
often vary greatly. I have seen indications we may (hope...hope...hope) see some real competition returning. With the world economy in the dumps, some locations have a reduction in visitors, some dramatic. While some governments attempt to quiet the reports you can see empty slips, far less full boat yards in the off season and if you get to know the individuals who have been in area, you will know people who are moving their boats around or returning home as a growing number of Charter
Boat owners have done in past 18 to 24 months.
At least we can HOPE for a flattening of the rate of increase in fees!