Is it still hip if the squares are doing it?

[avignon]

You know how some things are hip because they are not mainstream and they are non-conforming to "normal" society standards, for example, getting a tattoo. But now everybody and their uncle Dave has a tatoo. So it isn't really "hip" anymore, right? Or like having a pierced navel. That has become so mainstream that people's grammas are sporting the belly button rings. So the question is, do you still do it once it has become mainstream, or do you reject it? Or do you only do it once it has become mainstream?
Where do you fit in on the whole trendy scene? Are you a conformist or a fashion rebel? Do you stick with your own thing no matter what the current fashion forecast is? Or do you ditch your can't-live-withouts once every Tom Dick and Jane jumps on the band wagon and move on to the next parent-shocker that strikes your fancy?