I certainly agree with trying to save money and getting a second hand headset. However hearing is important. I have protected my hearing my whole life and it has paid off. Get a good headset that works well. If you can't afford the best brand new, at least get something that is comfortable and protects your hearing. It may be better to spend the money on a headset rather than on more flying time if you spend that time distracted by headaches and comm problems.