You can appreciate high end clothing even when you're not wearing it. Just looking at it, touching it, thinking about what it is and what it represents, how it came into being etc. brings a great deal of enjoyment and satisfaction. High street clothes are just something you wear, like you might buy a cheap print from Ikea to brighten up your room. I view my collection of high end pieces, on the other hand, as more akin to a fine art collection. I find this approach to fashion far more interesting and fulfilling than chasing trends on the high street, so I do buy a lot from what would be considered the 'high end'.