If it goes below 200 on all the exchanges, I think we are looking at the next big step down to 100-150.
If...
There's still a long way down. There's a big chance that 200$ will still act like a hard-to-pass barrier. It wouldn't be the first time.
"Long way down", dropping from 250 to sub 230 took about an hour. Nevertheless, I'm with you saying that (hopefully) the 200$ barrier is strong.