I find several things wrong with this whole childish concept.
As I mentioned in a previous post, Dungarees are in fact work pants. You really shouldn't be wearing them unless you plan on wrangling horses, digging ditches or going down a mine. That being said, to treat them as precious bit of high fashion is silly, and to pay fashion price is far worse. Certainly we all own them, wear them and love them, but we're talking about jeans, not a Gucci suit, for cripes sake.
Does anyone remember being a kid and having the same pair of jeans for years? I can remember playing in them, running in the dirt, really beating them up, and they didn't look half as bad as the one's in the link above. Maybe it's because my mother used to wash them, thereby alleviating the abrasive qualities of dirt.
Ask a woman, any woman, how cool she thinks it is when a guy wears pants that haven't been washed in a year. I'll wager you get a different response.
Call me a dork if you will, but I prefer clean clothes.