at diff 17-18 the minimum price is 0.2 BTC / million, even going a little higher on coinedup so hurry up if you want to buy before the price goes to the moon.
Wow, I went out for a day and the price doubled?
yup, 0.22 now on coinedup.
difficulty doubled, so that's the main driving force behind the price hike.
Oh, thought it could be that the demand has doubled.