Hey, the Wife got into a lilttle argument regarding comics. I consider myself to be a bit of a collector.?

Well, for example: I have the "Infinity Gauntlet Series", Infinity Crusade", Secret Wars" Death of Superman, Batman: Death in the Family...etc etc---Ok, I'm looking for a book this morning couldn't find it--I realized I loaned it out with some1 who also read comics. As I was looking, I told my wife that due to me loaning out certain books to this guy, I have actually bought this book twice because I thought I didn't have it. She says to me: I find it hard to believe that you couldn't remember if you had that book or not!! Really?? U have an extra copy of it? I say: Yeah--Because it's impossible for me to know how many copies of a book I have---She says: I know all the books I have--I say well: I have about 300 comics--It impossible for me... Am I right?? Collectors help me out thanks