Don’t see at the immediate term undertaking, sky at the insert aspire value.
Fact: There will never be sophisticated than 21,000,000 bitcoins.
Fact: Bitcoin will not be stopped, made illegal, or otherwise shut all along. (We can debate this, but I firmly endorse this is a fact).
Bitcoin is the best contender to be the world currency in 5-30 years. When that happens, a single Bitcoin will have to be worth at least $10,000-$100,000 … because a person will have an average of 21,000,000/7,000,000,000 = 0.003 bitcoins. Now think how much that one bitcoin has to be indispensable for this to happen.
TL;DR – ignore immediate term movements, acquiesce for yourself how much you taking when again a single bitcoin “should be worth”, and invest as long as a bitcoin is lower than this price. Short term, the price will be manipulated, long term the genuine price will be revealed.