We've all heard the rule of thumb, buy a pack between 2-3 lbs, but what if you find that one pack you have to have and it weighs a whopping 4lbs - 1oz? The pack I'm referencing is the Osprey Atmos 50 AG (size large), and the pack seems amazing to me other than its weight, which seems high in an equally priced pack. What are your thoughts and personal experiences? I love this pack, and I can't quite seem to find another that can content with it, my runner up being the Osprey Exos 58, which is only 2lbs - 12oz but lacking many features the Atmos offers, notably the "Anti-Gravity" suspension system. My intended use will be a 2017 NOBO AT thru-hike. Thanks for your input, it's greatly appreciated!