Why does Amps/Preamps forum have most threads?

There is a good reason why Amps/Preamps is listed first.
In addition to the fine answers mentioned above, it is the
most popular category. Besides once you post under
amps/preamps you are not allowed to leave, they won't let you.

Honestly, if I had limited funds and I was making an amp and preamp purchase I would put most of the money into the preamp and fudge a little on the amp. I think a good sounding preamp is much more likely to carry a mediocre sounding amp, then the other way around.