I would encourage you to go to all three stores in Hawaii. The DFS is across the street from the Hermes store on Kalakaua Ave. I do make some Hermes purchases but, do not know the stock on CJ as well as many other TPFers. I have been in the DFS Galleria with one of my condo neighbors that I see on ocassion, mainly on holidays as she lives in Japan and I live in Virginia--I speak no Japanese and she speaks pretty good English. You always want what you can't have, I go shopping with her in the duty free store and she has purrchased many Hermes items, Kelly, Jyspieres, and small size Bs, wallets and ties for her husband. I watch her and always get jealous because it appears that they always have more stock. However, I couldn't say that from certainity but purely from emotion and being excited for her finding so many things.
I would absolutely check it out if I were you since you are a Canadian. Both the Waikiki store and DFS are so close if you have to time go to all three stores. Have a great time in Hawaii. I will be back in Hawaii (Kona, Waikiki-not really a shopping trip) for month in August and hope to catch up with my neighbor if her family cames back to Hawaii, I don't know when school and univeristy start in Japan for her children. Sorry for long response HTH.