I have my usual 3 season base down to 8-9 lb, 3+ season about 11-12. :) I just see a point of diminishing returns... I really like and am very comfortable with the gear I use now, and only see marginal benefits to changing anything significant in my pack- Which is what I would have to do to see any real further weight loss.
When something wears out now, it generally gets replaced with the exact same thing, or the closest thing still being made.
I look at new gear and toys now and again, but I get tired of gear. I just see it as peripheral to what I really like, which is walking. Walkin's about as easy with 8 lbs on my back as it would be with 6.