The Sephora I usually stop in at is in the same mall as a Hermes and a Cartier boutique and so they don't carry those things. However, the great thing about them is that they will decant a sample for you if they don't have a factory sample on hand. I even had an incident where I couldn't get anyone to help me at the Sak's counter (deserted, not too busy), went back to Sephora and asked nicely and they gave me a empty vial w/spray top and I went back to Saks and made my own decant. I was *hoping* someone would come up and say something so I could tell them about the terrible service. Instead no one did and I probably could have just walked off with the tester.
Just for getting that bit of service right puts them in a good place in my book.