Drjones,
There's one other thing that Tam left out - the feel! There are makers that will produce a knife for you that have the perfect balance, curvature of grip and angle of blade made to fit your hand like an extension of the very nerves of your fingers. You get to pay a little (or a lot) more for that. I've picked up a couple of knives from makers at shows that happened to meet that description, but I've had to have the others made to fit me. These knives feel as if they are alive yet completely under my control.
If I keep studying rapier I expect to be looking for such a sword as I've described and I don't want to even start to think what it's going to cost me.
Chris Reeves makes the Sebenza to be used, the name means work. I've cut holes in the sides of 55 gallon steel drums and carved PVC while wearing a full face respirator and sliced tomatoes and sisal rope over the years with it and it's never nicked, chiped, bent, or gotten loose. That's the only reason I carry it on me almost every day. Well, maybe because it's a very elegant design that can do all of this may be the other reason.