I am not an ultralight packer.
It's just a sad fact. As much as I would like to be, as much as I try to spend my money to get the best, warmest, lightest equipment, it's just not going to happen for me. Why? Because I am a photographer. When I go out on trips I can't just get by with my iPhone, or a small point and shoot camera. I need to take it all. Multiple camera bodies, multiple camera lenses, tripods, filters, and other various accessories. It all adds up quickly. But the fact is, there are just certain kinds of photographs that you can't get without the right equipment. My backpack may be heavy, but at the end of the day, if I can come back with the photographs I really want, well.... Then it was all worth it.