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You are overlooking things like magnetrons, x-ray tubes, photomultipliers, CRTs (which still have a lot of applications outside of the video display sphere), krytons and so forth. It's not all about diodes, triodes, tetrodes and pentodes.

Wikipedia lists some other modern uses including (most unexpectedly) in particle accelerators:

http://en.wikipedia.org/wiki/Vacuum_tube#Vacuum_tubes_in_the...

I believe NORAD computers still use vacuum tubes.

One of my professors told me a few years ago that tubes were still used heavily in high-power commercial radio stations. Could be dated info though.