Put me in the pricey pack crowd, to me it is very high on the list of essential gear items. Getting in 1/2 mile of so you can get away with slinging stuff over you shoulders and carrying gear in both hands. For getting in deep and carrying platform, sticks, and cold weather clothing, a decent size pack with some kind of frame/suspension is basically necessary to justify over the lighter weight treestands which double function as decent haulers themselves.
I'll post the photo for seemingly the millionth time but this is my early season setup with that pack.
Sticks in load shelf, clothes and gear in the pack, platform strapped in with the compression straps. Compact and balanced, proper weight distribution fundamentals.