Given most investments are returning way less than 10% at the mo, btc is still a good investment IMO. And it will get better if the big investment funds get involved.
Dead, hmm, I don't think so.
Some people just arent happy with 10 or 20% profit they want 67x profit or whatever. It's just greed. As long as you havent lost any money what matters, and if you have lost, well that's investments for you. they don't always work out.