Favorite Classical Conductor Followup

For those interested in a sample of Kleiber's work, his recording of Beethoven's 5th symphony with the Vienna Philharmonic is a must have. The current CD reissue on the DG Originals label (catalog #447400) also has a great reading of the 7th symphony. It is currently on sale at TowerRecords.com for $8.99

And of course the Brahms 4th on DG originals. I had at one time a Beethoven 4th CD on "Orfeo" label that was also quite good by C Klieber. Unfortunately very limited number of recordings available. Why are there so few recordings, any opinions?

The two "New Year's in Vienna" discs (Strauss Waltzes and Polkas) on Sony are examples of how Kleiber can take the commonplace and elevate it several levels. And they're well recorded to boot.