Agreed. There are many great packs out there that don't have camo on them, most will carry heavy loads much better as well. Osprey makes solid packs.
What ever pack you decide to go with, make sure you can adjust the suspension. Most of the less expensive packs do not have adjustments for length on the torso/shoulder straps. Many have pretty basic belts as well. Adjustment is key for packing heavy loads.
If you're willing to spend $200 on a new pack, up it a bit and keep a look out for a used Mystery Ranch NICE frame and bag for it... Frames go for $150-200 and bags can be had for $100-250 if you look around. There is no comparison between the ones you are interested in and the NICE suspension.
Reviews aside, you have to consider that most people reviewing those packs have most likely just upgraded from book bag status, and they are certainly a step up. I know when I bought my first true internal pack with full adjustments I thought I'd hit the jack pot... Until it was loaded with 80lbs of meat/gear.
For general day pack, and maybe one heavy load I'm sure they'd be fine, but if you plan on making multiple heavy loads, your shoulders/back will let you know how bad your pack sucks... I've used probably 15 different packs over the years, starting at the book bag knap sack style, up through various camping style packs (including the famous Jan Sport pack frame) Trapper Nelson, Military packs, etc. There is a direct correlation to the cost of a pack to relative comfort under heavy loads.
My two main packs now are a NICE with a 6500 bag and a crew cab. I don't use this pack much, other than for monster loads (moose quarters/meat), or day hikes/hunts. My main pack is a Kifaru Highcamp 7000. They all pack down small for day hunts and are big enough to load up with a weeks worth of gear and more meat than I can pack when needed. When I pack in, I dump all my gear at camp, and use the same pack for a day pack. Works great. That first trip back to the truck is usually the one where you're still tough enough to pack the most weight, no sense in wasting that energy.