I wouldn't use a random chinese metal heating element for a lightbulb let alone my vaporization of lung-entering inhalables. Enjoy the copper/aluminum coating on your lung tissue if you use these. No good.
Low-vapor-pressure ceramics are the only way to go unless you can get a metal like tungsten with an incredibly low vapor pressure at high temperature. Silicon Carbide also works well.
Vaporizers work well for any inhaled media, just make sure that the machine isn't kicking off poison in the process. Plastic components and paints outgas like mad.
"The wise man does at once what the fool does finally."
I have lots of hypocritical knives because I am not a rube.