well after watching breaking bad I would try, i don't have an addictive personality really, only had a small problem with cocaine but that's done with. I believe its OK to try anything once. Apart from heroin, i hate that drug, my opinion don't rage anyone or say I'm contradicting myself.
Depends on where you live and who's cooking. Right now I don't think anyone anywhere sells decent meth. It's mostly cloudy and light and doesn't hit you like it should. If someone showed me some actual crystal I'd be surprised. I wouldn't do it any time soon.