Do you guys think $50 + shiping is too much to spend on a dog harnass?

The Ruff Wear harness that I looked up appears to be one used in search and rescue as a lift harness. I'm not sure how this is going to help your dog learn not to pull. The harness itself is very sturdy and well worth the price but I don't think that it will work the way that you expect as a tool to train your pulling dog not to pull. You might want to look into a sporn or an easy walk harness. Both of these make it very uncomfortable for the dog to pull while walking.