I think someone else said Wal-Mart was a bad analogy for AC, and this is an example why. Although I'm not a Wal-Mart shopper, and I don't like the effect they have on some cities' shopping district, I _do_ perceive them as very service oriented (not just greeters, which annoy me no end, but having the inventory, lots of registers open to keep lines, short, etc.), with a major technology infrastructure to support them.

andrew