[drynoc]

I didn't notice the cost of that system, but if you are handy at all you can make one for yourself for about $75. I made one nearly identical to that, with the lines folding along the boom when not in use, and I love it. You can do a search on the net for something like "lazy jack installation" and you'll find all kinds of information on things that people have done that you can either copy or improve on. If you are not the handy type, and want to buy one, it is a great thing to have the lines fold along the boom.