I carry my wave or my charge tti on me all day at work. Along with a knife of somekind.
Two reasons, first is the knife on the leatherman kinda sucks, fairly weak blade design, combined with a lock that is hit or miss tool to tool, makes me less than enthusiastic.
The follow up is that its just too darn thick and bulky of a handle to a lot of tasks where you have to get a flush cut not to mention uncomfortable for hard cutting tasks.
I converted a coworker to carrying a knife and along with the leatherman he carried for years, and he's still doing it, so theres something going for it.