I'm one who is common to state camo is largely over-rated, even for the bowhunter, but I'm also one who has spent a lot on my hunting attire over the years.
I buy based on features suited for my application. If I'm buying a parka for whitetail hunting in late season, I'm looking for quiet, yet waterproof/resistant warmth. I'll throw a shell over top if I need pure waterproofing, but I want to stay dry as the dew drops so my warmth stays warm. I also look for breathability (i.e. not a huge goretex fan), as I'll usually walk a mile or more into my stand and back. Layer-ability is an important matter as well, as I might start my week in blowing sleet and snow at 5 below and -20 windchill, then end my week in a 50degree sunny day.
When I'm looking for something to chase Elk out west, I'm looking for lighter weight and extreme breathability.
I really only care if my outer layer is camo, and scarcely worry about it even then. Some of my closest shots with a bow or a handgun have been taken in the relative open with a dark brown, wool lined carhartt parka and black carhartt quilted bibs, or brown duck coveralls. Since some of my outer layers might become inner layers later in the season, I have a lot of camo.
I've done very well in wool. As much as I HATE picking up a million little seeds and burrs, they hit a stable concentration on my legs within a few days and I just leave them the rest of the season. No matter what other high dollar camo I might own, when the mercury drops, I know I can rely upon wool. It's not light, not small and packable, but it's warmer than anything else on the market, and well worth the trouble for late season stand hunting.
And then there are those warm mid-season days where I throw on a canadian tuxedo and go kill game...