I work for an appliance store that does deals with direct buy. It actually isn't that 'direct' because of the sales arrangements that they make with us. We deliver the goods, DB does not usually touch them. I think that with some shrewd negotiating, you can find what you need at as good a price as DB could give you. I say this since they are still making a profit on goods that WE are still making a profit on. They are really adding an additional layer of cost between you and the product. It makes everything more difficult for you regarding warranty and service issues (IMO) since for one thing, we have every DB purchase listed under DB rather than the name of the buyer. Which confuses things when you are trying to get info for servicing. I would go to a reputable retailer who specializes in appliances or whatever you are seeking, and tell them you are considering DB, but would prefer to deal directly with a local retailer-and a sales person that has some accountability to you. THey have a LOT of wiggle room about the prices they can offer you, they can let you know of upcoming specials etc. Also, in the Seattle area, we have cabinet places that offer some great deals too-even custom or semi custom installations. I don't know what kind of deals DB has, but the way they operate tends to make me think that you aren't going to get that great of deals.
Edited to say: I just saw the rest of the posts-there is NO way you will save enough with even a large remodel to justify a DB membership from the prices I have seen. You would have to remodel a dozen houses or more. The difference in price is negligible when you are talking a membership price of 4 grand!! Shop around, a good shopper can find great deals. End of season, closeouts, home shows. . . there are all kinds of ways to save. Even at our store with our store discount, our sales guys say that costco has a equally good BBQ grill for less than what WE would have to pay-because it is kirkland brand. Do a little more comparison shopping. I don't know about the all of their (home remodel) goods, but other than travel(which is a joke) costco does a good job in the competitive market.
Also, when looking for countertop fabricators-REALLY shop around, and make sure they have sound experience. You would not believe the issues we hear about countertops!
MEASURE everything very carefully. Appliances that have to be ordered usually carry a re-stocking fee. Plus its a pain in the butt when you are trying to get certs. of occupancy etc. Have to have that stove! (I love WOLF! Excellent brand, never get any service calls on that one)