Why they are still selling a these prices? Good question.. Perhaps most of them bought BTC when it was between $800-$1000 and they prefer to sell before it's too late.
IMO, the post-BTC-bubble decline is not completely over. We are still currently well above the pre-bubble prices : ~$100.

For a recovery trend to start happening it's not necessary that the price goes exactly back to pre-price bubbles, it could be 50 or 100 dollars above, 50 or 100 below, the point is, if you are here long term and specially if you bought at the top, would you risk losing a spot on the train to try to get a perfect bottom? if you are here long term you know the only way to make it out of this shithole is by holding all the way up.