While certainly a good notice for those who are newer to knives, I personally like the idea of a titanium knife for their use in marine environments; salt water and sea side knife use can make for constant cleaning.
demuredemeanorYou may also be interested in looking into the Spyderco Salt series - they have a proprietary stainless steel that's as stainless as a kitchen sink, and holds an edge at least as well as 440.