This is my favorite knife. I have been carrying it a few years now, and this is what it looks like today.
This is what it looked like when I first got it.
This is the knife I rotate in most often, and has gotten the most EDC time since I first got it. Many would have made it a safe queen, but I decided I wanted to use this one up. Despite having sharpened the clip many times now (using a Sharpmaker and stropping more often than sharpening) it seems like it is going to take a long time to use this one up. I have heavily reprofiled the pen blade to make it a great whittling blade, and the spey blade is kept razor sharp and very thin for when I need a razor (not used much).
What I am coming to realize is that, in my modern world, it is not likely I will every use this one up. I use it daily (when I am carrying it), but I slice cheese with it, or my evening fruit, or open the occasional package. Couple that with the fact that I am a knife junkie who likes to rotate other knives into the mix, and what I have is something likely to be passed down for a very long line of ancestors.
The pen blade gets the most use, when I whittle, but I almost never sharpen that, since I always whittle with a strop by my side, and strop often. The thin and flat grind never seems to get dull this way.
Contrast this with someone from the mid 1900's and before that, where knives were used to harvest, cut twine, rope, leather, clean animal hooves, skin game...the list goes on. It is much like the years I spent as a chef. We used out knives in a professional kitchen at least 50 to 100 times more than the average home user does. When new chefs would come into the restaurant, with their $20 knife sets they purchased from a TV commercial, they were dumbfounded that their knives would not last a week in heavy use. That was when they understood why a chef would pay $100 for a single kitchen knife, that would last for decades.
Buying a nice, high quality traditional today means buying something that is going to outlive all of us, even with what most of us would consider "heavy use". For those of you who truly do use a knife for "heavy use", I tip my hat to you. You are doing what a well made traditional was made for.