i think you should buy BTC if it is reached more and be careful with because if price down to less than downtrend will return.price volume has been increased around that 15 billions on bitcoins so would suggest everyone to invest on the bitcoin and altcoins to make the money on crypto investments. I really do not understand whether the cheap altcoins are go  bigger in the market personaly guess about the bitcoin price is around 15k to 20k in this year ,far this complete year we did not find the price in the market at all. If you are looking for long term investment on bitcoin you may do that now....