If you're still debating on which extruder, may I suggest the Makin's USA Ultimate Clay Extruder Set, Stainless Steel. It has a black barrel. It is incredibly sturdy, AND easy to turn the crank to extrude the clay. I have their green one, and it's very good, but I use relatively soft clay in it, and don't stress it much. The most annoying part is that it has a t-shaped handle to turn, and it's just hard on the hands and slow to turn that. And it makes a squeaking noise that bothers some people. I saw the Ultimate Extruder and it's SO much easier to crank, and sturdy! A friend has one, and loves it. I have purchased one even though my green one is still going, just because I know the black Ultimate Extruder is so much better. And it comes in a great container with all sorts of disks included.
I would suggest you order it from Makin's to get the real thing. They are having trouble with having a lot of knock-offs being made and distributed.