@VPKairi
I have only bought one manga comic in fact, the other two I have were given as presents.
What catches my attention in manga when I'm at a bookstore is the art, like Kairi said, and if I've heard of it it makes me want to have it even more, but I've been unlucky enough to not bring much money the few times I've been to a bookstore recently, and knowing I have to wait for summer or winter to go to one (where I can purchase them in Spanish), it's often a bummer that I couldn't get to buy more to discover new series.