I'm not saying to charter a sail cat and never raise a sail. BUT there have been times we never had sailing winds for the entire week (except maybe a couple hours for 2 days. Anyway, the most we have ever paid for fuel was about $80. With motoring 95% of a weeks vacation was have only used a total of 18 gallons for both engines. Of course a power boat will move a tad faster but it works for us