Hehe, I won't say what I am thinking; but answer your initial question instead. I plan to use the club feature in any way it can lend itself to my world, and some of the builds I have made already is a concert hall, for my classical musicians, to gather and play their intruments. The lot is a large two floor guilded lounge, with a closed off entrance to the stage, which is the 'club hangout'. I built it on the Sky Gym lot, Uptown, San Myshuno.
Another build is a small temple, on the lot Tangled Flat, Ohan'ali Town, Sulani; a place for the two kahunas (Hoapili household) to skill up, with the spirits floating around. It is only for the club members and closed off with a fence.
I have built a jazz club, with a small shady back room meant as club hangout for 'criminal activity'; yet to found a club for it.
Fashion belongs on a stage or street or even a store, as setting.