On Amazon I see there’s several adapters that claim to allow you to continue using your old MagSafe chargers with USB-C equipped Macs. Some of them are surprisingly inexpensive, but I also see user comments about devices getting really hot and failing. Does anybody know specifics? Are these things even kosher? Or are you better off just throwing out your old MagSafe chargers and sucking up $69/$79 plus tax for every old one that needs to be replaced?
[Edit: added a few examples]