A couple of things happened.
1) USA dollar is being phased out as being the world standard. Several countries have already bypassed the dollar when finalizing some trade agreements. Russia, China, Germany, Japan, India are some of the countries. It is just one reason the dollar has been losing value.
2) I have seen some on other forums devaluating the C as a great tube, but it is the result of faulty testing. In fact, optimizing for any tube is required for optimum performance.
3) Quality of the Cs has always been excellent from personal experience as well as others.
4) Not the first time excellent parts have been discredited, and become extinct, due to faulty testing.
Cheers.
What I find ironic about the first point you made is that China, Russia, Japan and India ALL have crap currencies that are worth diddly squat compared to the Dollar (the US, Canadian, Australian, etc.) and yet they want to try and "phase out" the Dollar as a standardized currency for being "weaker" than their currencies? Ha! I laugh at that!
The only reason for that is because of the new "bit coin" currency that these aforementioned countries are trying to adopt for online business dealings... :thumbsdn:

:nono:
I mean if you need anymore proof of what I'm saying just look at the current exchange rate values for the Japanese Yen to the U.S. Dollar, ¥1 is equal to only $0.01 USD (1 US Penny) and the Russian Ruble is only worth like $0.03 USD (3 cents on the U.S. Dollar), the Indian Rupee is only worth 2 cents in U.S. Dollars, and the Chinese Yuan is only worth 16 cents on the US Dollar.
If that isn't proof of bad currencies then I don't know what is.
The only reason why any of these currencies are even able to compete in the world is because their respective countries have hyper-inflated their currencies because they knew their currencies were pretty much worthless against the British Pound, or the Dollar or the Euro which is why they hyper-inflated their currencies so that they could compete in the world market place better, (and so that they could devalue the Dollar and the Euro and the British Pound).
Also Germany doesn't have any need to eliminate the Dollar out of global use because they rely on the Euro just like all of the other countries in Western Europe (The European Union) and with the Euro being based upon the Dollar it wouldn't make any sense for the E.U. to want to get rid of the Dollar.
If anything if such a thing was in the works the only countries that would be interested in such a thing happening would be the Eastern European nations, most of Asia, and most of the African Nations. There are still a lot of western and eastern countries that still rely on the dollar as their primary currency so it wouldn't make sense for any of those countries to get rid of the dollar as an internationally recognized currency.