I've got a Naruto (series)-related tattoo that is symbolic (only I know what it refers to, but otherwise it's just a flower), but I'd never get a tattoo that is so obviously something from the series (or any other fiction for that matter). I mean, the most I'd go for would be an Anbu symbol, for example, if any of my faves had it.
I wouldn't ever get a tattoo just because it has to do with a piece of media. For me it would have to be something timelss, original, and deeply personal.
I've got nothing against people who do get media related tattoos though. Some of those things are just more important to others than they have been for me.