Well. I always buying bitcoin every week for gambling and trading, when i buy the bitcoin i always check the price first and if the time is good i will wait until the price of bitcoin is good.
dont buy bitcoin for gambling, is bad way to growing your money.
better to learn about trading, is good way to growing your money.
buy bitcoin for gambling it is a bad idea, if you want to play gambling, better looking bitcoin with free way, it's better when you lose you do not feel you are losing money too.
If you are buying bitcoin only for gambling purpose then you are ruining your money and life too, buy and keep it safe for the future.