I've had these for I think 3 years now and these were my first IEMs. I'm thinking of upgrading them to the Vsonic GR02 Bass edition ones since one ear has stopped working. The question is, will I notice a significant difference since the prices differ by only 20$ or so? Or is such a minor upgrade not even worth the money? I'll be using these on my samsung galaxy plus and on my laptop if that matters. Thanks.