Where I am in life I need a lot of clothes that look respectable but aren't button-down-and-tie kinda things. And that is Banana Republic's specialty. They have a lot of casual clothing for a guy who wants to be comfortable without looking like a slob.
I echo Michael on the price, but after I try things on it is hard to argue. I'm not a big shopper, so a store like this where everything just fits... well it's an easy one-stop-shop.