Perspective folks, perspective. While I hear the word "man cave" it's more about "our space". Personally in my home it's called "The Bunker". One of the most challenging things we guys are good at is tuning the lady out from time to time *big smile but looking around in fear* so tuning out the actual words "man cave" should be easy. On the other hand, vaa jay jay....really don't care what you call it. Just include me....ahem.....in.
Finally, I'm in agreement about the men and fish and guns, etc. Yeah we like that stuff but I've never, ever, EVER wanted to go to a party with all "hard legs". (Just wanted to throw another phrase our there for fun). Girls have to be part of the mix somewhere IMO.