Hi Daisy. Some of you know that I carry an old Kelty white cloud spectra expedition backpack. Its huge! I can put my winter gear in it including a bibler tent and a large old 700 down -5 bag. The pack can be disassembled into different configurations, but the lightest is 29 ounces.

So for 29 ouces I can put ANYTHING in my pack. The reason for tiny packs is the cherished idea that smaller is lighter even if it isn't. If you want to be comfortable camping, you can take larger gear, like a bigger sleeping bag or a 2 person tent, winter stove etc, or you can be totally cool (cold) and carry a purse sized pack...

Just my $.02
These are my own opinions based on wisdom earned through many wrong decisions. Your mileage may vary.