with this prize fall its impossible to ROI and difficult increase doesnt help....
If this continues and BTC doesnt go up i will sell all my equipment

It will go back up - it always does. No need to worry OR sell
He always does it...so was turkey thinking when that nice human was giving it food twice every day...
On a more serious note, peak in 2011 was ~$35, then it went down to $2. The equivalent on Bitstamp would be from the peak of $1150 to $66, but since at the peak of 2013 bitcoin was not as technically overbought as in 2011, there is a good chance that we stop either at $340 or at $250 (april 2013 peak).