Exactly what the title says.
If bitcoin dropped to the price of a dollar (which we hope it never will), what would you do? Buy more and hold, sell? Buy a promising altcoin like ETH?
I personally would buy more bitcoin.
Firstly, you should know that time will not come because now bitcoins have alot achieved the top, so bitcoin will not come down.
Secondly, if you imagen that bitcoin is a dollar, then i think 60% people will buy it, and 40% people will not take interest in it.