Amazon UK are offering Thielemann's 2009 Bayreuth Ring cycle on MP3 for just £4.49. That's all four operas, in full, at more than 95% off the CD price.
The singing on this recording is variable, but the orchestra plays sublimely, and the recording quality is excellent for a live performance. For anyone who doesn't yet have a Ring recording, don't hesitate.
I don't imagine this deal will hang around for ever, so don't take too long to make up your mind.
US readers please visit La Cieca for the Amazon US link to purchase. The Amazon UK link is below.