Bitcoin has no limit as to where it can go. As long as there is hunger for the decentralization of the world's current monetary system, cryptocurrencies like bitcoin will flourish. The price of bitcoin will continue to fluctuate because investors in general are fickle, but because the concept of bitcoin is so promising, holding on to bitcoins that are acquired will be very rewarding. I personally think bitcoin can reach a 50K valuation within the next 5 years. So whenever there are dips in it's current price, take the opportunity to accumulate more if you can.