Buy in is my opinion and suggestion to other users, this is what i did few hours ago, now i am seeing some of altcoin and bitcoin was already increasing its value and i am happy with the result of my decision.
This moment is not late to invest, buy bitcoin now until the value are not yet reaching 12000 dollars.
If you had waited a little longer you would be able to buy bitcoin at 7-8K. The downtrend is not yet finished we can see that bitcoin is still going down in the market.