Which makes more sense: owning one quality $100 knife for 30+ years, or going through 10 $20 knives over the course of 30 years?
But living with 1 $100 knife requires certain behavioral changes. You must take care of it, sharpen it, transport it if you're moving.
Really, these are positive changes and I totally agree that we should be buying more durable goods and maintaining them. In fact, this behavioral change is why the government wants people to own homes. Home ownership gives you something that you need to maintain well rather than simply move away from/discard. It even gives you incentive to improve upon it as that trip to Home Depot can really improve things like the value of the home. People live in communities, improve their homes and communities, and take a real stake in improving things on that local level.