Worth every penny, especially if you wait for them to go on sale.  Try one pair to start, because they may not be your thing, but I find they give slight support and chaffing protection both while wearing slacks and blue jeans.  The waist band of many other brands has been a problem for me in the past, but these have given me only minor comfort issues, usually revolving around the rise of my slacks or jeans coupled with my belt while sitting down.  The only way to avoid this completely is to have them painted on I think.  Have not tested their extreme adventure utility yet, but they have served me well on a trip back home to see the parents, and the packability made them easy to get into a crowded carry on.