Isn't there this logscale chart somewhere?
I think right now we're above the trendline, we should be at about 350 dollars, but we're at 800.
According to the trendline we get a stable 1000 around September 2014. But there could be a new bubble starting mid 2014,
leading us 5000+ per btc. I think in 2015 we'll be around 10.000, and late 2016 at 100.000 per btc.
The end price is about 1 million per btc in 2018.
All this of course under the premise that adoption of bitcoin continues and that major companies will continue accepting bitcoin,
like overstock did early this year. And I think the likelihood for this scenario is very high.
So hold on to your bitcoins