Thats interesting what you said about valuing work clothes higher. I definitely do that, since i work 5-6 days a week, and i like to be dressy. My work stuff works for dressy non work occasions, and i mix work pieces in for weekends.
But, i work out at least 4 days a week. Far fewer actual hours than in the office, but a good size capsule needed. Yet i dont consider spending a lot on gear. I like it to coordinate, but its functional. Ill spend very little on casual wear, since i only wear it one day most weeks (i dont go out sundays). Im very much an outdoor person, but dont feel like me when dressed down. I dont have that all American girl that looks great in jeans and t shirt look. I get "where are you from " and people trying to guess my ethnicity.