We are interested in estimating the annual cost of ownership to operate a ~ 34 to 36' boat in the Great Lakes area (Parry Sound, ON). We have been chartering for several years and are considering purchasing a boat when we retire (a few yrs off). We are thinking about a 5-10 yr old boat (e.g. Beneteau, Catalina, Hunter or equiv.). Are there any rules of thumb for maintenance, depreciation, insurance etc.? What would the list of major expenses be?Thanks very much for sharing your experience.Ian R