I just bought it from another member on a photo forum lol.
I always keep my eye open for Tamrac packs; everyone who sells them never uses them and they are half price or better: http://www.bhphotovideo.com/c/product/544648-REG/Tamrac_558401_5584_Expedition_4x_Backpack.html
I paid $90 shipped. I paid the same for my Expedition 8 which was used about 2 times and goes for $299 new.