Are Their any Tube Preamp with Home Theater Bypass?

I have two - Herron VTSP-360 and ARC LS26. I previously owned the Modwright LS100, which also has HTBP.

Some tube preamps put less stress on tubes than others.

I'm guessing that most people that put together a combined 2 channel / home theater system don't have room or funds for both or would have to make other compromises that would result in both systems being worse than the single combined system. 

It's certainly the best solution for me. 

I would choose to have two systems and listen to my audio system in the walk in closet.

I bet the soundstage and imaging would be amazing. 

I agree with most of your posts, but that would be a much bigger compromise than a well put together combined system.