I have been wearing 501 Shrink-to-Fit since the early 50's and I won't have any other.  The quality has slipped a little but I still prefer the 501's to any other jean "hands down".  They are tough and will take a beating and will wash out nicley enough to wear to Church.  What looks nicer than a white shirt and a pair of neat 501 Shrink-to-Fit Levi's?  Been wearing them for over 45 years and just would not want to change now.  They are great no need for changes.  I will be wearing them until the cows come home. :)