Clothes & Where you should buy them

In New York there was a commercial for the New GAP store placed before movies in the theater, this is a very derranged setting of tearing apart an old store, to find out a new one is going in. GAP used to be one of the top sellers and it's customer number has decreased 4% over the year. Many people feel it is because GAP changes it's style so often compared to that of Abercrombie and Fitch and American Eagle. GAP used to be trendy and trendsetting, now today it changes so often that it's hard to determine what it is. One reason is that GAP seems to be a season behind, with fall clothes still being full price and hanging on the racks, although it is winter. And with sales decreasing what will happen to this fashion mogul?

Where should you buy your clothes, somewhere that's trendy or somewhere that's cheaper? What's the difference in the supply and demand of these two differences? Is GAP really on the verge of declining and even going out of business? Or is this just talk due to a bad publicity stunt?