i agree tubes are not the holy grail of guitar sounds but i still find it unacceptable that theres Fakery (SP) going on, personally i think its nice to have a Good mix of solid state/tubes for the best sounds, even if it means using different amps its still nice to have the option, i wouldnt want to buy somthing thinking it was tube driven only to find this was a big scam just to sell it to people thinking they are getting a tube sound.
also offtopic slightly my favourite plane http://en.wikipedia.org/wiki/Mig_25 uses/used Tubes/valves so that it was resistant to EMI and EMP from its nuclear payload, a little bit sinister, at least if nuclear war breaks out our tube amps should still work : P