Let me clear up a few things as far as cost of having a boat leave out of the US. The cost of insurance is the same. Our cost for inspection & registration of the Aqua Cat, a boat of similar size to the Nekton run between $15,000 & $20,000 per year. I believe Nekton paid under $2,000 per year. The reason we moved the Blackbeard boats out of the US was the cost of getting out & in. This cost had increase to over $75,000 was continuing to go up. We had to send paperwork for each departure and arrival to USCG, Customs, Immigration & Agriculture. It took one employee to just comply with this. We also has to get a special hazardous waste dumster for anything that came off our boat since they considered our boats because they had been outside the US. We had to schedule a aggriculture officer to come to our boats to open the container. If they caught anyone putting something in the regular trash they hit us with a fine. This included someone walking onto the boats with a beer can and then departing & putting in a regular trash barrel. When we left we had over $30,000 of fines pending. We could appeal & did. We never lost one, but they a lot took time. There is also about $75/person taxes extra for trips leaving out of the US versus the Bahamas.
The Nekton itinerary out of Florida was great from spring to fall, but when the weather patterns changed they had problems. There was no place for them to dive or hide with the strong west winds you get in the winter. You would be wise to operate out of one spot year around. Most Caribbean liveaboards operate 49 to 50 trips per year. Nekton only average about 42. It is difficult to cover your fixed costs with that number of trips especially with what they charged.
Bruce