Hi guys,
The first guess is me 65k-70k USD
A bitcoin may be worth 65k, and bitcoin will not reach 65k in 2018, because there is no certainty of bitcoin to reach 65k in 2018. I believe bitcoin will reach 65k, and time will answer it.
I am not going to oppose or encourage the prediction because I am no expert when it comes to foretelling the value of bitcoin. It is the most volatile of the crypto currencies. We never know what its next peak will be. However, bitcoin can easily touch 50k dollars for sure.
The present performance of bitcoin is not what made me say so but its last year growth rate told me so. Bitcoin may also touch 65k dollars. Who really knows?