You know why we have disposable razors now? The double edged safety razor was one of the best shaving systems ever created. The problem is nobody held the patent for the razor blades. Anybody could produce and sell them. The double edged safety razor itself was generally so well made that it lasted a lifetime which meant a company could only hope to sell one per man. So they introduced the disposable razor to create buyer comeback. That's why in the disposable razor heads aren't interchangeable so you can't use a competitors blades. The Gillette mach 3 was considered the best for a great while but price increases made them hugely unappealing to most people. If I have to go get a store lackey to unlock a case to buy a product, I'm not buying that product there. In the double edge safety razor world you can shave for an entire year and not approach the cost of a single Gillette mach three refill. The cost of a double edge safety razor, blades, a bowl, a brush, and a stand can be recouped in about two years over disposable razors. And I don't think there is any disputing that it's a better shave overall.