"I have 15,000 comics in a warehouse, all bagged individually"

Method Man's quote is likely describing his collection of comics. It is likely that he has been collecting them for some time and has generated a big collection. The fact that they are all bagged separately suggests that he takes fantastic care in protecting them. It is possible that he is a fan of comics and has been collecting them for many years. He might also be a collector who is wanting to make a profit from his collection. Either way, it is clear that he has a terrific appreciation for comic books and takes terrific care in preserving them. His quote is a testament to his dedication to the pastime and his dedication to protecting his collection.