If you really enjoy music, and are a fan of obscure bands, that's fine and dandy. But it doesn't make you a better person than those who just don't care.
On a related note, listening to Jazz, Opera, or Classical music does not make you smart. Nor does it make other people think you're smart. It does, however, often make you think other people think you're smart. (Which is not to say there's anything wrong with this sort of music. If that's what you like, by all means go for it. But if you're listening because you think it will make others respect you, that's just sad.)
Designer labels are only impressive to shallow people.
Also, if you purchase a $1000 designer outfit that's been marked down to $700, but you could have gotten essentially the same thing at Clothestime for $30, you have not saved money.
People who care about wine may be interested in your wine knowledge. Nobody else gives a shit.
Any man who's a car snob and judges other people by the car they drive has a small penis.