Ah, let's see...
At first, it was my son who was trying to get me into Korean drama. At first, I thought the actors/actresses tended to overact; however, when I REALLY gave it a try, I was quite impressed, so I started watching. I also watch them because I am studying Korean (I study Korean in order to understand what they are saying in Korean musicals when I visit Korea to watch. When I first went there to watch "Death Note" and "Phantom" (both on the same day!), I did not understand a single word! During my recent visit last October, however, when I watched "Bridges of Madison County" at the Charlotte Theater, I was happy to finally understand and get what was going on. Even when I watched 암수살인, I was able to understand some of what was being said. And, since I work in the legal field, I pretty much could tell what was going on, since I have used such methods in evidentiary analysis before.)
I don't think this is a fad for me. I take it as a supplementary learning experience. I tend to look for the law dramas, however. After getting addicted to law drama, I finally understood my father's love for Perry Mason.
As to giving up watching them, that remains to be seen.
Yes, I actually started by watching Japanese dramas, especially Japanese horror like 本当にあった怖い話. I still like watching Japanese dramas; however, viki doesn't have a lot of J-drama.
I started watching when I was learning Korean and I was curious as to whether or not there was any Korean horror drama. I saw "Coma" and loved it. Unfortunately, Viki doesn't have it. I really got addicted, however, after I was so impressed with Joo Ji Hoon's acting in The Devil. That was what made him my favorite. Then, Lee Jong Suk impressed me as well, especially in Pinocchio. That scene in the bus, when he found out that the 'father' knew about him, I was crying so hard while watching it. First time Lee Jong Suk has been able to make me cry so hard the way Joo Ji Hoon has been able to (until that time, only Joo Ji Hoon could make me cry all throughout a drama).
And that's why I watch K-drama.