Many threads have been written on TB about this kind of thing and often I find people saying that MIM Fender's are just as good as Foderas or Sadowsky's or Alembics, etc. But have these people ever really tried any of the upper echelon basses about which they write?
There's also the sentiment that some dudes don't need a Fodera, therefore Fodera is pointless. It's interesting how bashed they get. Having had the opportunity to briefly play one, I was amazed.
Make no mistake, however, a great bass player (which I am not) doesn't need an expensive bass to sound great.
This is always where the most arguments start. Give Lance Armstrong a rusty Wal-Mart bike and he'll probably still beat most of us, but hand him his ultralight bike and nice components and he wins le Tour 7 times.
My boutique basses don't make me better, but they allow me to do my job much easier than some basses. Since they're much more comfortable, I can play longer and practice more. Since the action is lower, I can play slightly faster and with a lighter technique that also increases my endurance.