I bought a pair a few years ago and they wear really well. True, I am not hard on shoes, but I wear them in winter boots, hiking boots, tennis shoes, anything that is a full shoe, except for women's dress shoes because they are too wide. I use Dr. Scholl's for women in those. They don't work as well for me, but I still find them helpful. I switch the orthotics into whatever shoes I want to wear, it doesn't take long, and is more than worth it. My feet are pretty flat, so I really need the extra support. I wear the 440's and they work great for me. My first pair which is about 3-years-old is still going strong. I would like to get another pair or two just for convenience, but I don't HAVE to. I would think I am in the vast minority of people who these last so long for, but they wear quite well for me. Shoes are one area where I will pay to have quality, so that probably contributes to having them wear well, but for some reason I can wear the same pair of shoes everyday for long periods of time and they don't wear very much. All I can say is for whatever reason, lucky me!