I don't know why the idea of shopping with bitcoins sounds amazing. However, I searched the websites which uses bitcoins as a payment method, I saw that there are really limited websites. I hope that the number of these web sites will increase, but I'm not sure though If I wanted to spend my btc at all.
It's "amazing" for who wants to resell clothes. Buying with Bitcoins can give the buyers a chance to buy stuff cheaper and sell it more expensive for fiat, next they can convert to BTC again. It's a good deal, but as you said, there isn't many stores online selling clothes for Bitcoins at this moment, this plan won't work well until some big online stores start accepting Bitcoin as payment method.
Mrcash02 talks about profit here, how to make more bitcoins with reselling clothes. And this can work if someone can find quality clothes for cheap and then have good difference when selling it later.
Olcaytu2005 you need to realize that only circulation of bitcoins can make this economy grow, how do you think that merchants will accept bitcoin if no one spends it? Help bitcoin economy, contribute a bit, buy something, don't just save.