Brian, I cannot answer your question from experience, since I have never EDC'd a scrim. But I can tell you what has been posted here about their construction. The covers (handles) are impressed on ivory colored Delrin with a hot die through an ink tape. So the designs (and ink) lay below the surface of the handle. This should protect the design somewhat, since Delrin is pretty wear resistant stuff. I too have seen them quite "pocket worn", and I would think that you could simply carry one in a pocket seperate from your keys and coins to extend the design detail life, since the ink (not paint) is not on the surface, but in grooves.
As has been said, many have been carried and used over the years, so finding a used example might not be a problem, and "error" knives abound on eBay, they both might give you something to carry as an experiment before you carry a mint one. If you want to acquire and carry a mint example, then do it. Only a select few patterns are considered rare by any standard, and many were made in unlimited quantities, such as the ones from the late production where the patterns were repeated year after year.
Codger's opinion