Reason 1: It's something to be passionate about and it goes on forever. Like the saying goes "La mode se démode, la style jamais." It's a fast paced business and trends are always changing, it's exciting and tiring all at the same time.
Reason 2: It's a way to express yourself, to identify yourself to others. I know what you're thinking, it's wrong to judge a book by its cover but it's not always negative. You can tell a lot about a person by the way they dress and the way that they present themselves.
Reason 3: It's art. To some, designers clothes may look odd and uninteresting but it's real, living, breathing art! How much more real can it get than walking down a runway in front of you? The makeup, the hair and the clothing on the models make them almost inhuman and more like art.
Reason 4: Retail therapy is the best kind of therapy, for me, honestly, shopping is the most relaxing thing I can do. It takes all my focus, time and energy when I'm at the mall planning outfits. Some people read, others meditate. Well I love to spend all of my money on clothes. Even reading a good magazine is a distraction mechanism that I often use.