Not really. Ive got $2K of NOS tubes just in my amps. Four bucks doesn't bother me. I'm an SE type of guy and the last one to run Boulder. I went back through old audiomarts (the Crewe VA one, not Stereophile) and couldn't find any examples, so I'd thought I'd ask. My friend is a pure non-audiophile who bought these upon the suggeation of another friend years ago who was a Mach 1 Distribtor and sold a pair of mini-monitors to him with the electronics. They sit in his antique shop on a shelf in the back unplayed. If I can get a consensus I'll run an ad here and elsewhere. Sometimes things are simpler than the suspicious self would like to believe...