Here's a good post on Superfuture.com about the evolution of jeans. It basically started off with one guy showing his jeans on day one, then some photos after 2 years of regular wear, and challenging the other users to show off theirs too. So far they are on 1349 pages. That's a lot.
Mine still have a long way to go before we reach 2 years. So far it's only been 106 days.
There's one thing that this guy did say that has made me think a little, and that is that if he was to do this all over again, that he wouldn't have washed them.