How far do you go?
Besides the safety and maintenance advantages of diesel, there is the fuel economy aspect (diesels as a whole MUCH MORE stingy on fuel), and the availability of fuel. Where I sail in the Calif. Delta, gas is more easy to come by at a marina than diesel. But, if I were going to Mexico, I'd want the diesel because the long distance between fuel stops, and most of the fuel stops are commercially oriented, and therefore are more likely to have diesel. Also, many of us who haven't maintained a diesel feel comfortable with "points & plugs", like the old 62 Chevy, while diesels are a mystery....It all depends on what you're comfortable with, and what you plan to use the boat for. Personally, I think a C30 w/diesel would be great to do the 800 mile Baja run, but for now I'll keep my C27 w/ 2stroke OB for my trips, which are usually under 60 miles before a fuel stop....