You are right about that, I also would do this, if the bitcoin falls on a time I will buy without any doubts because I pretty sure the bitcoin will after the fall come back up like it did almost every time.
I really trust in the bitcoin and I will support it even if it goes down.
If bitcoin price would fall to the bottom like $1 price maybe there would be a problem with it hence thats already too low amount to consider buying more coins would be still a risk because it wouldnt guarantee us that it would pump again and im sure theres a new crypto would be more progressive when that thing really happen to bitcoin.