I currently use Sony's MDR-G45, but was wondering if I'm missing out on better audio quality vs. something of higher quality. Am I going to see a noticeable difference in a $40 set over a $15 one? I saw NewEgg has these on sale, but I'm clueless as to whether they will benefit me at all. I'm not looking to spend a lot of money as I'm not an audiophile. Also, how much does my onboard audio chip affect sound quality? It's a Realtek ALC892.