Price of bitcoin is not certain it use to increase and decrease but we will have to wait till the price of bitcoin goes high once again, I like to buy bitcoin because I trust bitcoin and I know using bitcoin I can have a lot of things in my life and I can spend a better life. Even now I am sure bitcoin price will rise when it is at the stage of the low price, but my patience for bitcoin will never get lasted, I am buying bitcoin today and I will always buy, because bitcoin gives me a lot of things, I have very high patience to hold my bitcoin.
Your decision is good, but you also need to be careful if the price suddenly falls. You must have preparation, do not all in just on one coin. And most important is never invest what you can not afford to lose.