What makes a dog that yips or barks on track worth any amount of $ ?

I have always ran hound crosses that would run silent. In the past couple of years I have acquired a bmc and a redbone bmc cross that will give mouth on a hot track. I also have a few young dogs I am bringing up this year. I have found that a dog that barks on track or yips when things get hot actually help my young dogs get going quicker and gets them to were there is something that they can pick up and run with. In the past my older silent dogs woudl go hunting only for my young dogs to get out ran or loose interest. ( not all the time but mroe times than not) I am not advocating for a babbling idiot that opens and never produces pork. So IN MY OPINION one that yips on track does no damage to a young dog AS LONG as the dog is about to be looking at pork. My only question is this - if a hog is going to run when a dog opens up wouldn't they run if they hear people talking or four wheelers riding around, or smell us walking through the woods? I am for both silent and somewhat open dogs. Did not mean to get on my soap box.