I'm pretty sure most everyone has some amount of wire edge. The quesiton is really how far you're willing to go to try to minimize it. How long do my edges last? That is so impossible to answer. My main knife will probably last a couple of months at home before it drives me insane. At that point, some parts will shave and some really won't. I tend to use my tip area a lot more than the heel area. Still it depends on what I'm cooking (one barbecue session and an edge is toast), what I'm cutting on, what kind of edge I put on it, what knife it is and how you decided the edge is done and I'm sure I've forgotten some significant factors, too.