Keep it clean - Most buyers will actually make up their minds whether they like your boat within the first minute of seeing it, so first impressions are important. Clean it up from top to bottom. You could always get a cleaning company to do it for you! A splash of paint may help in some areas.

Tell them about all the extras - Most companies sell products by appealing to our desire for that little bit extra. When you sell your boat be sure to mention things that are included like radar, downriggers, fishfinder etc. My wife once bought a car because the front seats swiveled round so you could have a picnic, even though we only use this accessory about once a year. It could make a potential buyer choose your fantastic used boat over a shiny one in the dealer but with none of the fun bits.