...and this time I have numbers! :)
I've just heard that the Rudolf recording appeared on the Austrian charts. The recording debuted on Ö3 Austria's "Hit Parade" (top 75 albums) at #17 at the end of April, and lasted 7 weeks total (4 of those in the top 40).
For comparison, the Vienna cast recording of Jekyll debuted back in 2002 at #26, and also lasted 7 weeks, and the Graz recording of Dracula debuted at #34 and lasted three weeks. Not so good for Dracula, but really good for Rudolf.
These charts are based on both physical and download sales (just in Austria, I'm guessing). For more information on the charts, see
http://www.austriatop40.at/ - and for historical numbers see
http://www.austriancharts.at/Best,
Peter