I try to keep the blades on my LM Supertool unused, because have great edges on them now, and I don't want to screw that up if I don't have to. I have the blade in my Micro for day to day abuse, and I carry on of the hawkbilled Smith and Wessons.

Suprisingly, that later takes a pretty good edge. I picked it up becuase I was doing a lot of stuff where I was breaking down carboard and breaking up big chunks of packing foam, and I found years ago that a pruning knife works well for that kind of thing. I've got it set up so it is almost as fast in my hand, with winter gloves, as an assisted opener would be.

As for the why- the tools in a multitool, IMO, are for backup. I carry a real knife for day to day cutting.