I'm incredibly picky when choosing a drama and often drop most an episode or two in, but if I find a drama I love and watch it till the end it becomes a cherished gem.
Not me (I do have my preferences but usually give the drama at least a couple of episodes (4+) to convince me before I drop it, but dramas I love do become a cherished gem for me too)
I get easily interested in a drama just by the cover or synopsis