Ogien, you have touched on just one of the neat things about Opinel's. They are as people friendly as Peanuts. I've carried various size Opinel's over the 31 years I've played with them, and I've yet to have anyone say anything negative. Okay, once, but it was a number 12 that I reshaped the handle to a sort of Navaja look. But it did slice the limes very well!
But number 6's through number 8's, all seem to have a benevolent look to them, and as they have been displayed in museums of art, people must like something about them. But I think if more people would try to use them, they most certainly would buy them. I've owned a heck of a lot of knives in my life, to include high end customs. But I can honestly say that none of them were actually a better cutter than an Opinel. Oh sure, some of them would hold an edge better, being forged 5160 by a master smith of the A.B.S., but as for actually cutting a piece of rope, opening a box, slicing stuff on the cutting board in the kitchen, not really better. Plus, the Opinel can replaced for the price of a couple for beers down at the corner pub. Unlike the hand forged blade. After having Karen loose one of my knives over board in deep water, I kept that in mind.
I've never had one under the number 6, but I could have a number 4 in the near future and blame it on the author of this thread.
Carl.