Dang II! I have a Camelbak Motherlode that I use for shorter durations but it costs me four times that price! This looks to be a very similar styled pack.
At least it has held up well over the past ten years I've been using it...
Cheers! M2
p.s. That's a great site but I found Top Brass had a better price on the Maxpedition Colossus Versipack I was looking for, plus you can get a 10% discount coupon if you 'like' their Facebook page!