To each their own, of course, but to me, the amp (a tube amp) is an indivisible part of the instrument. For instance, I almost never use an acoustic amp or a built-in pick up in an acoustic, even if they have them (esp. for recording) - those things are not part of the instrument. I would rather just have a mic, even if it means I can not move around.
On the other hand, for a solid body electric guitar an amp is required. It is part of the instrument.
I choose a tube amp for 3 key reasons: 1. Incredible dynamics - No SS device can match it, 2. the audience has 50+ years of experience of listening to guitars through tube amps - almost none of their favorite songs were through SS, 3. The transition between clean and distorted is smooth and gradual - changing volume, tone and grit with pick attack becomes part of your playing syle. Once you learn to do it, you can not go back.
Joe
Roadie & Reviewer
GoodGearGuy.com