Can Amazon MP3 Kick iTunes' Musical Butt?

If Amazon is going to offer good quality MP3s for less, I sure hope they take over this space. I've long been a fan of Amazon (though I admit my respect for all things Apple has evolved in the course of the past couple of years).

But I am not in love of the idea of paying more for something when I can (legally) get it for less. The case in question: I had a gift cert to put to use in Amazon and I decided to give their MP3 store a shot to download an album I'd long wanted to get: The Wizard of Oz. I found it one dollar cheaper in Amazon MP3 than in iTunes. ;)