I am considering the purchase of a Benchmark folder that has a ceramic blade. I was taken by the shape, size and ability to easily deploy with either hand. Can ceramic blades be sharpened? Or do they hold their edge without the need? Is the blade decent for edc? The guy pushing the knife at the last gun show said the blade does not need sharpening. Obviously I found the knife cheaper online, but sans decent info. I don’t ask a lot from my knives most of the time, but I do always have one on me. Thanks in advance for any feedback.