I think for 50 bucks more and free shipping you can get a lot more bang for the buck with a trailer that is 1/10 the weight. In other words, a trailer that you'll use a lot more often.
http://www.bicycletrailers.com/Burley-Flatbed.pro
How often are you planning on hauling a refrigerator or cabinet TV?
For gas money and a six-pack I'd hire a friend with a pickup.
That one is so heavy because it's built to be towed behind a motor vehicle. Which causes much more stress on a trailer and weight isn't much of a factor.
I have had the above model Burley for years and love it. Used to tow it every day until somebody gave me two rear racks and a pair of panniers. Still use it for large or bulky loads. I also use a Burley Solo when I want a covered trailer.
The best deals I've seen are some of our forum brethren and sisteren who have purchased used child trailers and converted them.