Mostly they don't publish weights, because at the end of the day it just doesn't matter.
Oh it does, at least when the parking lot is full and you have to lug the stuff all the way up to the lodge
But really, if it doesn't matter, why do they advertise "lightweight"? And if they advertise it, why not post the numbers to back it up?
Basically, what BigmountainVMD said...