It all depends on the market. You keep getting pumps and dumps, all altcoins are affected.
Just the other day Ripple spiked and had a 17% gain, but it's also expected it goes to $1 by 2018. We wont know unless it happens!
Yes, none knows the reality. Just based upon the speculations as well trust associated with the increasing investor base people have the predictions about the value of bitcoin. Most of the time till the price goes high people think of the growth and later used to feel bad of missing the opportunity. As in the statement the price spike happens often and very few trust and invest.