Used to hate tantos and serrations with a purple passion, now I love them in certain instances. Basically I've found that they're fantastic for shop work, and in the construction area. The serrations will do for cutting alot of plastic, and denser stuff, the tip is usable for light prying, piercing and light use as a screwdriver. (carpet tacks, etc.) and the chisel ground ones are very handy for scraping gaskets and gunk. Obviously I do somethings with my tanto that aren't highly recommended at all, but I'm comfortable with the limitations, and also figure ya' gotta do what ya' gotta do to get the job done when your an hour and a half from your toolbox.
my three current favorites are CRKT M-16/12 (the smaller one) Benchmade Stryker, and my Emerson CQC-7
I still think they're next to useless for camping and hunting, But incredibly handy in other instances. I guess it's like any other tool, ya' just gotta spend some time with 'em and learn the strengths and weaknesses.