Things I don't get

I learned something new on my latest trip: hidden away near the train station at the Zurich Airport is a shop specialising in, shall we say, adult products. I'm no prude about these sorts of things, but I couldn't help but wonder what their business model was. I mean, is their target customer the guy who forgot to pick up perfume for his wife at the duty-free shop and so picks up a copy of the "Buffy the Vampire Layer" DVD instead? Or perhaps someone who couldn't get a dildo through customs and so needs to get one at the airport on the way home instead? Given the number of these types of establishments in seemingly every town in Switzerland (they're much more open about that sort of thing here than back home), it's just hard to see the value of having a place at the airport. (Maybe this calls for more research the next time I'm at Zurich Airport?)