From originally being a store room we would not wish to show visitors, this has become one of the most-used rooms in the house! You can have the music as loud as you like, your darts will not hurt anything - and spilling your red wine is even less of a problem than on the oak flooring upstairs! Interestingly, it is also unheated (as is all of the basement) but always warm enough to play darts etc in a tee-shirt - even in mid-winter!
Conclusion? Get a basement!