slick, I am a big fan of Marin. Quality workmanship and love the frame geometry. The Bolinas Ridge has the same frame as some of their high end bikes and is certainly worthy of any "upgrades" when/if you wear out the components. Have you looked at the Hawk Hill? I had the 2005 and gave it to my nephew so he could ride with me. Great bike and got a super deal at www.sierratradingpost.com
on their special 20% off lowest price...made it $328. Sweet deal on a very nice bike. Good luck, I am sure you will like Marin. Oh, and make sure you ride the bike and get the one that feels good! Ride safe.