If you are looking to buy bitcoin then here my suggestion for you is that start make use of your own condition that for which purpose you want to buy bitcoin.
Of you want to make trade with that amount of bitcoin then you should wait for the stability in the bitcoin price because if you will bought bitcoin and start trading with such a big flcutuations in the price of bitcoin then you will not be able to make easy profit because in such conditions market of the altcoins goes down much .
And if want buy and hold for long term then my suggestion for you is to buy the bitcoin just now without see that what price is because bitcoin is perfect for long term investment .