The taxes and fees are out of control. As I have mentioned before the BVI government should focus on improving the ferries and using a chunk of that tax money to promote or even subsidize the SJU to EIS leg.
I suspect you could set up a solid inter island ferry system for pennies on the dollar compared to the runway extension. Maybe even add a terminal at the STT airport. Imagine walking from your flight arriving STT straight to the Ferry and having your bags connected automatically to the Ferry.
On your return you would arrive at the STT airport and go straight to customs where you would find the bags from the ferry waiting. You would clear once, recheck the bags and be at your gate!
I guess I am dreaming!
G