Once upon a time there was a clicker resistor called Runningdog. When Runningdog finally succumbed at first she didn't even buy a clicker, she used one of those biro pens with a clicky point. WOW! Even a clicky biro opened up a whole new line of communication with my dog. Suddenly my dog could learn faster, adding to his already quite extensive trick list at a rate that would have been unthinkable before, he was more excited about training, I could capture behaviours he did naturally, he could learn more complex tricks, we became a team... he was always clever but I found he was even brighter than I had ever imagined - not that he uses that cleverness to my advantage :-) I wonder how many people there are who are reasonably committed to training their dogs and who actually regret buying a clicker?