A few months ago I had to attend a "motivational speech" that went on and on for
FIVE hours

, but one thing he did talk about was Fighting Wal Mart.
He pointed out that one complaint leveled at Wal Mart is the lack of service, especially knowledgable people. His answer? When did Wal Mart ever advertise that?
Wal Mart was built on two principals, Everyday Low Price and One Stop Shopping and you have to agree that they deliver on both. I get my groceries at our Wal Mart every week because I can get everything at one place and the prices are cheaper. If they had D&D on their shelves I would buy it there too.
I don't have a FLGS, there are a few in OKC, but they change owners so often, you never know what you will find there. If I went to OKC to get these books, like many previous quests before I went online, I would probably end up at Waldenbooks or B Daltons and are they that different from Wal Mart?
If I had the choice, I would love to buy locally, I used to when we had a book store in town, but almost 90% of what I buy online is not available in my town and the choice of having it delivered to my door over driving all over OKC to get it, I will order online. It does have its drawbacks, ther are several books on my shelf that I would not have bought if I had the chance to look at them first.
As to D&D3.5, I have had them in my Wal Mart cart for months, but I will not order them till they are released. I agree with elbandit above, I have never had a pre-order ship on time with anyone.