Bitcoin gold is a scammy coin, a lot of people lost a lot of money because they exported their private key to another wallet provider, and they stoled all their bitcoins using the private key that they put in there.
Almost 7/10 people who claimed bitcoin gold exported their private key to there.
So many people lost their funds because of this, and you have to take in consideration that this makes people lost their faith in those free coins that the new forks were giving.
It would not surprise to see it going below $100 each one.