Personally I do not like the term "man cave." It sounds dark, foreboding, even Neanderthal.
When I envision the perfect space for myself, it is modern, bright, stainless steel. Yes it would have a bar, and of course there would be a 60" 4K.
Fireplace? Yes, gas only
Pool table? Not for me, I get bored with pool after 2 games.
Bowling alley? You gotta be kidding!
Theater seats? Yes, recliners.
Roulette wheel? Nope
Card table? Yes, poker, euchre, cribbage. Also backgammon.
The deco, however, would be anything but dark and foreboding.
But the term man cave is here and everyone knows what is meant when someone says "check out this man cave dude."
So I went looking for some spaces that would evoke my vision of what my space would look like in a perfect world and I found some that I really like in this post. There are also some that I hate. Check them out: