And one of the reasons why I bought this camera was so that I could chit chat with passersby about it. I've been asked "Is that a Leica?" at least fifty times now, and it was fun, I've even made some friends.
To achieve this effect a well-chosen camera from the fleamarket for a few Euro's would gain the same effect. Aside of giving photographs.
Well, this is not about investment. But you raised this point.