I've been both fascinated and frustrated by the ultralight crowd. I've only been backpacking for about 4 years now, but in all my trips up to a week long I have never had to carry more than 40 pounds, usually more like 35. I have had the lightest pack by a good margin in almost every group I've hiked with. I own... zero pieces of "ultralight" equipment. In fact, most of my equipment is rather inexpensive and heavy. Guess I did get an MSR Dragonfly this fall, but that's not even a true lightweight stove.
That 35 lb load in my pack carries food, clothes, tent/shelter, water, a good knife, cooking equipment, first aid supplies, and sometimes fishing gear for a week-long trip. Actually, when I carry my own tent it adds up to more like 40lbs, but I digress.
The point of my post (if there really is one) is that you can really lighten your load just by packing smart. What I bring is what I need. Last spring I hiked with a group where almost everybody had 50+ pound packs for five days. If you like carrying that, you won't get argument from me. But I'm not carrying it for you!
And if somebody wants to lecture me on saving a few ounces by switching to an ultralight ti poop spoon, I will ignore them and enjoy my hike anyway! That's the real point of going backpacking, isn't it? If thinking about my gear surpasses my enjoyment of the hike, something isn't right, and I should probably do something other than backpacking.