Here is what is happening here:

These incredibly expensive stores are there mostly for show and to create an image that they cater only to the best and richest customers.  They will tend to have stores in the trendiest shopping areas in different countries like France, England, here, etc.  They put a few stores out there at these spots then put pictures of them in all the ads....magazines on planes, everything you can think of, to show that they are "everywhere", and ONLY in the "best and richest spots".  Sure, they make some sales, but a lot of them have one lonely guy in a Tux standing at the door in a totally empty store, and NOBODY ever goes in the shops except the richest tourists who will buy an $8,000 sweater and get a bag 100x bigger than the item with the NAME! of the store on it.  It is an advertising gimmick.  Most of their sales do not come from that store, but from other revenue and sources outside of Waikiki.  You will see pictures of all their stores in the magazines.