The Album: Jazz in Paris: Lionel Hampton & His French New Sound, Vol. 1. This album happens to have only 4 songs on it.
Amazon.com price (CD): $13.49
iTunes price: $9.99
emusic price: 4 tracks @ 25¢ = $1*
The drawback (and you knew there had to be one) is that the selection is primarily independent labels, which means that the latest and "greatest" pop music isn't available.
* - Technically, it didn't cost me anything; I'm still on my 25 free trial tracks. Woo hoo!