The Hasselblad online store is really a great thing. Say you want to buy a cable for your CF back to X-Act2. You go on line and find it in like maybe 3 minutes and if you don't buy it straight away you have at least a picture of it and the part number. Call your dealer and he or she will say, "what?" and get back to you in a few days.
I wish Leaf had a store where I could buy at least the accessories like cables and even graflok back adapters. It's a PIA and a long process to go through the dealers for stuff like that, especially if the dealer has to figure out what it is, order it, then reship it once they get it.
And to be honest a dealer makes almost nothing on the cable - why should they even get in the middle of the small stuff?