Should I buy Bitcoin now or wait for some weeks? :-/
I think you should buy more bitcoin now because its a chance to become rich in the future and its very effective. In addition to that, if you have a lot of bitcoin there is a possibility that you could become millionaire. If you buy more bitcoin I suggest to hold it for a long time.
This reminds me on comment's two years ago, and some threads with same sentence: "Buy now or regret later!" Who didn't buy back then now regrets, same will happen in couple years when we look back on 2017.
If someone buy a lot of bitcoins dumping little amounts when price is very high and with same money to buy again in dips can be easily be done, I think risking 10% of investment to make more profit is minimal. Many people are doing that, and good ones pick the profit almost always.