I used to be a huge Borders customer, but over the past few years, they became useless at having anything in stock or being able to easily check if anything was in stock without calling the seven or so stores in the greater Phoenix area. I like being able have a book in my hands the same night I hear about it, so I prefer brick and mortar stores (and I don't like e-readers much).

If they can solve this problem the way Powell's in Portland has (one giant bookstore with everything in stock and two or so subject-specific bookstores), then I'd still be their customer.