Okay children, here it is plain and simple from someone who knows what they are talking about besides yngjock20:
It's all how you look at it. I only wear designer denim because I find it fascinating how much attention to detail in form, color, fit, and texture goes into a pair of jeans. I see it purely as art. And I'm an artist. That's why some people wear them. Some people don't understand art, and that's okay.
$200 is the average price range. When you wear them you would understand why they are that pricey. I have never been able to convince a single person who began in opposition of the idea of designer denim as being worth it - until they try a pair on. The results are pretty shocking, even though some are not thoroughly convinced, they would then see why an individual would want to make an investment towards them.
Again, it's just how you look at it.