At first I did not like these, but the more I use them, the more I really find I am so happy with them. I guess the case heft was clouding my opinion, which I find shocking. I worked in a heavy IBM mainframe shop in early college. I remember that one of the color dot-matrix printers had a head crash and was snagging the ribbon. The IBM suit shows up to fix it, and takes the cover off, and inside the printer are HUGE blocks of lead. So that behemoth printer was literally weighted down by lead bars. I asked the Suit what they were for, and he said, with a grin, 'Customers buy IBM equipment by the pound, and if this printer didn't weigh more than other printers, they wouldn't buy it.' And he laughed. I was shocked that he joked about it, but heard from others about how much IBM's stuff weighed, and wondered how much lead was in their fancy color terminals. I can see it performing a functional purpose, but to just be literally ballast to make customers 'feel' they are getting their moneys worth? So, me slamming the Beats Fit Pro for being 'light', is rather ironic, and I'm personally embarrassed to have done it. *shrug*
Maybe good things DO come in lighter packages...