Thanks for the help. Although it looks like a decent pack, I think I would rather sacrifice some weight for the assurance that it will last longer than a season.

You are right about 3,700 cu in. For some reason I was imagining half that actual size. 3,700 is cavernous.

I am leaning towards the REI Cruise UL 60(65) Pack. Although it weighs in at a little over 3lbs, it is large enough to fit all of my stuff inside and it is reasonably tough. The negative reviews have focused on complaints that it didn't handle 40+lbs well or that you can't be unduly rough with it. Neither of which I am looking to put it through. Plus, REI will take it back if I ever have a complaint.
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If you go hiking with friends,
there are many plans to coordinate;
if you go hiking alone,
you can leave right now.