I'm thru-hiking the AT this year, heading sobo this summer. Is it really a given that you will go through several pairs of boots? I'm a boot person, worn them my whole life, and am not switching to trail runners. I bought a pair of Danner Pronghorns http://www.danner.com/pronghornr-gtx...ing-boots.html , and have been breaking them in. Should I expect to need a second pair? Or is it likely they'll last the trip? If they last the trip, think they'd be done for by the end, or still usable?