I recently added the Kertesz set to my collection.  I already had Kubelik.
Frankly, I would not want to be without either.  The sound on the Kertesz
is slightly more detailed than Kubelik, more air around the music.  The
Kubelik has slightly more tension.  Kertesz provides a more "majestic"
interpretation whereas Kubelik is more "earthy" (whatever those words
mean).  Treat yourself, Don, and get both.  You deserve it.

{Peace
bob stumpf