I have the bigger Craftsman aluminum jack, model 50239:
http://www.sears.com/shc/s/p_10153_12605_00950239000P?pid=00950239000
It's the second one this summer, returned the first after about a month when the hydraulics started to fail. I asked the sales clerk if they were getting many back and she gave me a sheepish nod. I appreciated her honesty, at least. I would have gotten my $$ back, but I really needed that style of jack to do the brakes and some other stuff on my 996 which sits pretty low. A "real jack" that is made out of steel is not really portable in that weight capacity. This thing I can just throw in the front trunk of the car and the handle breaks down as well. It's a nice piece for the price if not for the QC issues. That's China for you, though. What else are you going to do in 2007?
If I had any shop space I would get a real jack, either one of Wayne's or an old, made in U.S.A. Lincoln jack. They are infinitely re-buildable and they were made to last forever. Different era in manufacturing.