If you're planning for a long term investment, better to buy ETH while its price is low. But, don't expect that its value will rise soon. It may still decline further, though don't panic. The market will get better as the year ends. You might have a good new year if you buy now.
Shall we wait for a few more weeks before buying in?
It starts to decline again for Eth, it seems that the rise cannot be estimated, but it will go down again. Buy now or later is okay.
I see an exchange that has already happened and must be patient to get profit.