I am Chinese and I watch Chinese drama with my parents, almost every night. While Chinese drama plots tend to repeat over and over (there is always some love triangle involved), I don't find them boring.
First I enjoy watching drama with my family at the dinner table. Two I feel that there is an urge for me to finish the drama to confirm my "theory" of the plot. The same can be said about the Western drama. Recently Western drama seems to be around apocalypse and new human civilization. What makes a drama boring is the combination of either or both the quality of the actors and the pace of the story.