First I want to say that I use the weighted Mt. Gox average for different reasons:
*To erase the price arbitrage between different exchanges and to ignore micro-volatility due to the thin market
*Because most shops use the weighted average
This is the chart for the last 6 months:
You can clearly see an uptred started in january (brown line).
Bitcoin is new technology. New users check it out every day. This trend will not go away until a large part of the population is using bitcoin.
The overvalued periods are indicated by red, the undervalued are indicated by green.
But I tend to look at the chart like this:
We are just still in a correction. The overvalued surfaces are not yet completely compensated by undervalued surface.
I predict a drop to 100$, then a fast price spike towards 200$, then a drop in price towards 180$ and then we reverse to the trendline folowed by a steady growth folowing the trendline.
thoughts?