Of course why would someone buy expensive Bitcoin when you can get it a discount? It just doesn't make any sense. Not just Bitcoin but other crypto currency as well.
The problem is that we didn't know the discounted price, (bottom) that's why majority is still holding back, but I'm sure that when the price reaches <$4K, a lot of investors will have a panic buying. Lol. So let's see how everything goes if Bitcoin will continue its downtrend or not.
The thing that many people are afraid of at the moment is that the discounted prices that you guys are talking about could actually not be discounts and may result in losses with the entire market plunging on a regular basis these days.
No one knows the bottom as you stated which is why many including me are refraining from investing into this market at the moment and are patiently waiting by the sidelines to observe how the market performs in the near future.