Maybe for you goober but for many they want something they can repair when something breaks and keep using forever. Not everyone just wants sub ohm. Now they can do regulated if they want, with a small now essential disposable drop in device. And if the zombie apocalypse ever happens, maybe you can't buy any more drop in electronics pieces when yours break, but you can always still use your elegant beautifully cobstructed mech mod. But you may be more concerned about whether your $300 lead pipe might be useful as a bludgeon against the horde 