I have been casually browsing for a new pack on line. I am a fan of Osprey but am flexible. I keep seeing a brand call Arc'Teryx (sp?). I have logged many miles on the AT over several years and have not seen this brand iirc. Usually see the typical names..ULA, Osprey, REI, Gregory, Mystic Ranch, Dueter,etc. However (and what prompted this ?) this brand is very, very expensive relative to the others mentioned. Anyone own one? Or know what makes them so $$$? Just curious (as i will probably just stick to what works well for me). TIA.