If you are not going to use them you are throwing away money anyway. Compare it to buying a Rolls Royce and then never taking it out of the garage. If you do lose them you will end up doing exactly what you are doing now anyway. I can't speak for others but I know what it is like to have to constantly have to repeat my questions because the person couldn't hear me. It is frustrating because you have missed a lot of important things that others get really tired of repeating over and over again. It even annoys me when I have to ask people to repeat because I couldn't hear what they said. But, that is your choice, of course, but don't be surprised if people start to avoid you because of it. I've seen that happen and even felt like doing that in the past.