I never thought about this topic until I joined this forum. I evaluate my guitars for sound. The ones I have kept (electrics) have usually been average to heavy in weight. My old Les Paul is a 9 pounder, and I never thought about it. I have a great sounding CV50s Tele that also weighs in at around 9 lbs. I play all my gigs standing up. But... at 71 years of age, 156 lbs, with arthritis in my back, I too have come to appreciate my lighter guitars. I don't think they sound better though.