I don't think 3 years is a long time to wait to quadruple your money. FMG is probably going to pay a tax advantaged dividend better than I could get with bank interest over the next three years, plus a decent capital gain, that's good enough for me.
I would rather a bumpy ride that nets me over a 50% per year averaged return over the next 3 years, than a steady 3%
I'm betting the same as you but with considerably less investe in this stock than you have.
Wondering why aren't you investing between the other iron ore stocks such as MGX and BCI?