If it falls to double digit it will probably drop upto 50-80$ but i think everyone will be buying tons of it so , that time will be small probably 1-5mins or such
Yes that time will be the best time to buy as much as possible but I do not think that the price of ethereum will drop to double digit. If someone bought from now then it is possible that he will be at a great success in the future in financial conditions.
When Ethereum dump to the double digit price level will be the best time to invest into Ethereum but I dont see the price dump to the level assumed by Mistemb and I can assure you Tradjecide people that bought in the current market will definitely make a great profit.