GPS Dog Collars, What Happend to Good Old Fashioned Training?

I find many things ridiculous and I am always amazed by what people will spend money on. For example I was browsing through one of those mall magazines you get free while on the airplane and came across a gadget that I could believe people would pay hundreds of dollars for. The item in question is a dog gps collar which keeps tabs on your dog at all times.

This is just seems ubsord to me. Why on earth would you constantly need to track your dog and why would you want to spend $500 dollars on such an item. Is it so hard to train your dog to behave and not run away? I guess that means I’m old fashioned but I just could not believe we have come to this.