Why does it cost so much?
First of all, hearing aids today have tiny computer chips inside of them. They have features that allow the two hearing aids to work together, much like your brain allows your two ears to work together to gather information that allows you to hear. If your ears are missing any information because of a hearing loss in certain frequencies, your brain has to work harder to put together the sounds that help it decipher conversation. The chips inside of your hearing aids help with this processing.