doctordb posted an interesting thread about the lack of home grown classical greats.
In a similar vein ...
This month's Opera magazine has an article about the worrying lack of singers nowadays who can perform Wagner and Verdi.
Spinto sopranos, heldentonors, bass baritones, etc.
If you were asked to name a well known operatic singer, it's likely you'd name someone who doesn't sing operas, never mind the big Wagner and Verdi roles. In fact, even I Pagliacci has a spinto soprano part (Nedda).
When I bought a new copy of the Ring last year, I chose the 1952 Scala recording, with Kirsten Flagstad. In sixty years, no one has sung it better, and I sure as heck don't think anyone is going to do it better in the foreseeable future.