Yes, the arbitrage in other markets comparing to Korean markets is huge! The main reason: very strict restrictions in Korean exchanges. It takes ages to withdraw cryptos from Korean eWallets or Exchanges. On the other hand when cryptos are such a popular phenomenon in Korea, worth to look from time to time in their pricing, because the chances are that the prices in other markets will follow: whether it's a dip, or a massive rise.

I noticed that about a month ago, couple weeks before Christmas, that Bitcoin's price is directly correlates to Korean's pricing. Ofc used it to my advantage too.