Even though any folder I carry can take any abuse I give it, I use my Leatherman's (Wave or Supertool) blade to cut many things. Basically, If the knife may get COSMETIC damage to it, I'll use the Leatherman.
I just want to keep the Nice Black finishes and other things looking nice.
Course, this isn't to say I dont use my good knives. They still see alot of use.