$18000?? Where did you see that?? As far as I know its around $16400 on preev and will take time to achieve the price of $18000 and likely by the end of the year.
Such price had place to be on South Korea exchangers where it is always higher than in the remaining world. I actually don't know why it is so, to me it is just like the fact 
I am pretty ready for a new surprise in the end of the year and expect to see 20000$ as minimum, well on South Korea exchangers it won't going to be so impossible to happen I guess
