Good Day!
Well, for me those people that still buying bitcoin even until now that the price goes down are those who still believe that bitcoin will still stand  and rise again.
And by the time even me believe that once it rise again it will really return all the loss that we've experienced.

I firmly believe too that since it is volatile, we could not still rely on what its value right now cause maybe later or sooner it will goes up.

That's how it work tho. People right now grab the opportunity to buy bitcoin because in the near future it might result a good one.