Maybe Tie Rack is a pickled egg industry?

Everyone thinks “well, there’s a novel and daring idea, I’ll buy a tie at the airport rather than taking one with me to my high-powered business meeting…now that’s living on the edge”, and does so, but then discovers that, if you want a real rush of adrenaline, Tie Rack’s not really the thing after all. But it’s okay, they’ve done it once, and if everyone does it once in their lifetime, there’s profit to be had!

Presumably people then have to turn to drug smuggling to find a new source of excitement to top the Tie Rack experience. So perhaps it is a conspiracy after all…