We get asked all the time about the Christiania, the Bakfiets and the Xtracycle. I've no problem responding accurately about the cost of these bikes as people who ask are generally interested in such bikes themselves. There's nothing in it for junkies taking such bikes.
If someone asks about my touring bikes, I would be more circumspect, but to honest, they're low-key and don't attract so much attention.
DFD.