This is good advice. I have some nice Cole Haan dress shoes that have held up very well over about 6 years of going into the office dressed up. They've been worn a lot, and have had the soles repaired once which bred a whole new life into them.
Look into shoes that are repairable. Maybe talk to a local shoe repair store for recommendations in your climate as well.
As others have mentioned, shoes to rotate in use will reduce the wear on all of them.