My best suggestion is if you are having money to invest in go and invest right now, because in case of postponing that decision there is a big chance that you won't have that money or the price will be not affordable anymore.
I have the same opinion. It is very likely of bitcoin to not give such a chance again. In the world of investment and trading, the basic and most popular rule goes as, BUY LOW, SELL HIGH. Now is the right time to buy because due to some reason, bitcoin is going through a dump. Apparently, it does not seem to be a cheap asset but future price will be much higher.