OK, I'll bite.
Tubes are not the "be all, end all of bass amplification". My two primary rigs consists of a Trace Elliot V-Type setup and an SWR 'Stella/Power 750 rig (don't use the overdrive in the 'Stella). For my band, the SWR gets the nod. Solid-state amps, in general, are going to have a much more focused low end, and a more "clinical" sound overall. I decided I really did need that higher damping factor on the bottom.
A tube amp, on the other hand, is going to have a much more "warm and smooth" sound. A good sealed cab tends to help tighten up the low end with a tube amp.
I also play a Fender (100% stock 1992 Jazz Plus V, Fender-Lace Sensor pickups, Kubicki preamp). It doesn't sound anything like a traditional "Jazz Bass" sound, and it doesn't have a maple board--it's pau ferro. My StingRays are all pau ferro boards, as well. My Warwick has an ebony board. Granted all my basses other than my Jazz are fretless, but I would be very unlikely to buy a bass with a maple board.
That said, it's quite possible to have a very clean midrange and top end out of a good tube amp. It's all in the settings you choose. All of my basses sound great through my V-Type, and they *all* have active EQ. My standard EQ setting on my basses is full treble, full bass. On the StingRays, I usually leave the mids flat, but sometimes I cut the mids all the way. EQ on the V-Type is usually set with a slight bass cut, flat mids, slight treble boost, and the Deep switch on, Bright switch off. I never have any problem with the top end sounding good.
Then again, I really want to go back to two 1x15's to help tame all that high end. 10's just seem to let through too much string noise, but with 15's, it filters it just right for my tastes.