The price is low because of the volume in the market. We should remember that the price is low compared with the bullrun and not to the value of BTC before the bullrun.
But this volume is not going to remain the same for so many years because it always changes, when the price falls we will have to buy and when it gets high we will have to sell, but bitcoin is still down because it is bearish trend but dont worry it will not take much long time for the market to recover, so wait it best answer in case of low price, market is will be high very soon.