Kevin et. al.,
I'm certainly not going into the "handle-less" knife business, but there are several things that appeal to me about these kinds of knives.
1. They are fast. Maybe I have ADD, and maybe I just like a change of pace, but after working on things like that dagger I had in San Antonio and the accompanying box, I kinda like something I can get into and get out of in a hurry. It's like creative instant gratification.
2. Because they are fast, they are less expensive and so sure, lots of people can afford one, and they'll feel less intimidated by the use of one they haven't dropped $1K+ on.
3. It's a challenge. Lets face it, there are a lot of knife buyers who get distracted by the "bling" on a knife and can't see the forest for the trees. Ugly, clunky, horrible knives with beautiful damascus or engraving or whatever are bought by folks who lack the experience to see they are just getting a over-decorated pig. When you eliminate all those extra elements, there's nothing to see but the design. There is nothing to distract from the bare simplicity of one piece of steel, some grind lines and a piece of string. The challenge is actually harder in a way, to design and make a knife with a pleasing design in the absence of decoration. I don't know that I've done that, but that is the challenge.