My Mk1 mini is 9+ years old. I bought the fullsize Mk1 in '04 when they first came out I think (with the case), and soon I realized that the mini would be better for EDC.

It follows me everywhere I go (except the shower). Sometimes when camping I'll swap the fullsize Mk1 in its place. The mini has also been through too many loads of laundry, and looks pretty much like your's. The only real sign of wear is the clip. My clip just says 'BENCHMADE" - no "USA" underneath. Oh, looking it over I guess I have a little chip out of one outside edge. Don't know how that happened.

I use a Sharpmaker and have never ever had a problem with sharpening. I think I sharpen it ... well ... maybe twice a year, though I don't abuse it.