The fact that the currency of choice in JA is the mighty US buck has been a pet peeve of mine for many years. I don't go to the bars/restaurants that charge in US $$.
I usually go to Negril for 6 weeks, the difference in the exchange rates over 45 days really, really adds up (virtually all accomm. is charged in US).
It cost me $132CDN for $100US last week.
Because of this, it pains me to say, for the 1st time in 20-odd years, we are giving Negril a pass in lieu of a destination that charges in Euros.