Nah, you’re not odd - same thing happened to me. I grabbed a pair of work boots one day and kept wearing them since they didn’t fall apart, I guess. Just two days ago I was looking at a pair somewhat dumbfounded and remarked that they’re still around.

Although I have to say, my lifestyle also changed. I moved out of the city, so my style and requirements for footwear probably also changed, come to think about it.