@goatsarah @fne8w2ah
I loved magsafe for the first couple years I used it; then I started to see them fraying & breaking at the connector. It was almost the rule. (I ordered power bricks for Macs for an ad agency for about 8 years, so I saw this a lot.)
Mind you *mine* never went out, so I think this was a user behavior thing, but I would say they were poorly designed for the behavior of most of my users.