What do you mean by "backcountry"? Are you backpack camping in the "backcountry"? What elevation? So many variables. It can be 70 one day and snow 18" that night.
I used to guide in second season rifle, and now guide my wife. If I could only have two pairs, an uninsulated pair and 800 gram insulated, and deal with the sock situation for temperature swings. Our camp was at only 9400' and I had a couple horses so I could take two pairs.
But I've endured some unbelievable weather (See: stuck in a dome tent for eight days in the infamous "Blizzard of '84, on my freaking honeymoon, and we're lucky we didn't kill each other...) that made me REALLY happy to have insulated boots, and when I didn't need them, I didn't need them.