I've never quite understood car people, but the closest I think I've come is my love of gaming keyboards. The first time I took the MelGeek Centauri 80 out of its shuttle packaging, I felt myself exclaim and didn't even realise I'd done it. Like a geeky Patrick Bateman describing the differences between business cards, I felt myself in awe of the shape, aesthetic, and build of the keyboard.
But alas, I know what it is. It's a showpiece, and not necessarily one I'd actually recommend buying. Though I'd certainly get a few sneaky glances if your rich friend picks one up instead.