Yeah, I agree. Unfortunatly, with the small weights involved and the fact that they are always in motion (accilerating, being stopped, then accilerating, again,) I think it is safe to say that weight along the entire pole is a concern, too. Lightening up to bare minimums is a reasonable thing to do.
I avoid the heavy rubber, carbide tips and simply use a small bolt instead. Carbide quickly dulls after a couple days anyway. This reduces the tip momentum by quite a bit.
Hand grips can be dropped, too, though there are people that like a more solid feel to a staff. More for level areas, the hills in the ADK's usually preclude this, often having to use my hands for scrambling up or down hills. Length changes are constant, soo, hand grips don't work that well...maybe out west.
I have used staffs for off and on for about 40 years or so. Often using "found" sticks as a substitute. Fishing, I soon found a broken fishing pole worked fine for hiking. Later I found these: http://groups.yahoo.com/group/BackpackingLight/files/A-HikingStaff/
They take about 10 minutes and about $10 total materials to make, counting hardware, epoxy, string and straping. I have been known to give them away on occasion when someone asks on the trail (and I am headed out.)