Crikey! NEVER skimp on a tripod if you are serious or even semi-serious about photography. I have three lightweight pieces of shit in my shed that have all failed me one way or another. Piss-weak parts, blows all over the place in the lightest of breezes and ends up on the ground with a bang like a dunny door in a cyclone.
Now I carry a heavy Manfrotto and Ball-head on my back through the mountains or carry it like a rifle, because it's about the same weight. It get's bashed, sat on, shoved through the scrub and holds my heavy equipment as steady as a rock.
Seriously, those who complain about the weight of a tripod need to man-up a bit.
Baz.