I'm down to about a 12 lb baseweight (no food, fuel, water) after a bunch of years of replacing worn out gear with new lighter things and not taking things I haven't used been using. For a 7 day trip my total weight is about 30 lbs (including a couple of ounces of whiskey per night). I try to minimize the "just in case" items that I pack and keep it to the essentials. Its not the lightest out there, but I'm happy where I'm at.
I am comfortable in all three seasons, good weather and bad and have managed to avoid having to really blow money on anything expensive like dyneema (cuben). I eat good hot food and stay warm at night, even when it drops below zero. I use a tarp/bivy combo and can usually taylor my load to the weather forecast and type of terrain (above or below treeline). For example if the weather is looking great I'll leave the tarp and some clothing layers at home, if not so great the tarp comes, if really terrible I have a "beak" that I can bring along to get really good coverage and don't sleep above treeline and warm layers come along. I like that its flexible and can be adapted to different conditions.
My trips now are much more enjoyable than they were 4 or 5 years ago. I can cover more ground and see more country, I am less tired at the end of the day and I don't have to grunt as much going uphill!