No way back from going MP3

I was shocked to discover the MP3 album of Robert Shaw's Carmina Burana on Amazon was only $3.69. The Telarc CD cost me a fortune when I bought it in college! (Shaw is an excellent conductor for choir work and the recording is superb.) The price is a steal. Oh, also for below $4 you can get the complete Tosca (yes the Callas one), 3 CDs. (I was not too interested in opera, but now, with the price, why not!) Sigh, it doesn't look like I may be back from going MP3 any more...