That a very large percentage of microphones
used in digital recordings are valve microphones.

Oh dear :-((

Neumann 49, 50, 56, 64 and U87 are very
popular.

Don't believe me? of course you don't:-)
Check the AES Journal (of which I am sure you are
a member, as the A stands for Audio and the E for
Engineering)

Also read some of the excellent recent
articles in Studio Sound,
to which I am sure you subscribe.


Cordially,

Iain