That sounds really cool. I don’t watch TV enough to have a media room but am thinking to put a TV in the home office. It currently has a window wall, Bookshelves, a mid century desk and my prized possession. An eames lounge chair that is my reading, music and just chilling chair. I almost want to get rid of the desk and put a folding wall desk on its place since I only use it when working from home.
I always so you more as a bourbon type of guy 
pale ale works.
Re: What would you want in your mancave?
Bourbon leads to too much interaction!
Re: What would you want in your mancave?
Research.
Depending on the nature of the interaction and the companion it can be a good thing
Re: What would you want in your mancave?
my mancave would have three levels. Bottom level=chilled out, underground sauna, spa and all that. Level above that=football. A bit more lively showing champions league and other big sporting events, maybe a shisha/mocktail bar on the side and a few consoles (strictly playstation). Level above that=DJ, raves etc etc with walls of 30 inch woofers 
Basically one big giant all encompassing playground