How many manga do you have?
How many complete series?
I know we have a thread for your Top Ten Favorite, but I want numbers here. Let’s see who has the largest collections.
You can post pics if you want.
I’ll start.
I have over 450 volumes in 79 different series. Some of these are just single volume ‘series’. Some series are complete and some are ongoing.
The List
Alcohol, Shirt & Kiss
Alone in My King’s Harem
Antique Bakery (Vol 1-4)
Apocalypse Meow (Vol 3) ADV Manga
Art of Loving (Vol 1)
Black Butler (Vol 1-2)
Black Cat (Vol 1-7)
Black Jack (Vol 1-17)
Bleach (Vol 1-63)
Blood Alone (Vol 1-6)
Brother
…but, I’m Your Teacher
The Cain Saga (Vol 1-4a)
Camera, Camera, Camera (Vol 1-2)
Can’t Win With You (Vol 1)
Cantarella (Vol 1-9)
Cold Sleep
Constellations in My Palm
Cowboy Bebop (Vol 1-3)
Crimson Spell (Vol 1-5)
Crying Freeman (Vol 1-5)
Dear Myself
Densha Otoko (Vol 1) ADV Manga
Dost Thou Know?
Earthian (Vol 1)
Embracing Love (Vol 1-6)
Enslaved by the Dragon
Exotic & Delicious Fate
Fake (Vol 1-7)
Finder (Vol 1-4)
Fruits Basket (Vol 1-15)
FullMetal Alchemist (Vol 1-27)
GetBackers (Vol 1-25)
Ghost in the Shell (compilation)
Godchild (Vol 1-8)
Gorgeous Carat (Vol 1-4; Galaxy)
Gravitation (Vol 1-12)
Gunparade March (Vol 1) ADV Manga
Highschool of the Dead (Vol 1-7) < omnibus >
Il Gatto Sul G (Vol 1-3)
InuYasha (Vol 1-56)
Jack the Ripper: Hell Blade (Vol 1-2)
Jazz (Vol 1)
Ka-Shin-Fu
Kizuna: Bonds of Love (Vol 1)
La Esperanca (Vol 1-7)
La Vie En Rose
Legal Drug (Vol 1-3)
Little Butterfly (Vol 1)
Lost Boys
Love Control
Love Share
Loveholic (Vol 1)
Loveless (Vol 1-12)
Nana (Vol 1-21)
Neon Genesis Evangelion (Vol 1-5)
Not Enough Time
Only the Ring Finger Knows
Petite Cossette (Vol 1-2)
Rin! (Vol 1-3)
Same Cell Organism
Samurai Champloo (Vol 1-2)
Satisfaction Guaranteed (Vol 1)
Scryed (Vol 1-4)
Sensual Phrase (Vol 1-18)
Seven
Skyscrapers of Oz
Solfege
Stallion
A Strange & Mystifying Story
Sweet Revolution
Time Lag
Trigun Maximum (Vol 1-3)
Trinity Blood (Vol 1-10)
Vassalord (Vol 1-4)
Wallflower (Vol 1-7)
Wild Rock
Words of Devotion (Vol 1)
You & Harujion
Plastic Little 1st issue.
Evangelion 1st issue, both Japanese and English reading directions.
Total: 3 comics.
HA! Beat that! :woohoo:
I have so much spread all over the place that would be hard to list all of them. Here is a short list I know I have volumes of:
Lupin III
Black Lagoon
Sailor Moon
Cardcaptor Sakura
Magic Knight Rayearth
Maramalade Boy
Kodacha
and many more.
Updated. 
I have volumes 14 - 28 of Bleach and that is it >.<
I still have just the first volume of Cromartie High. I can’t even dub it a collection yet, it’s a collect.
I am not a big manga guy, more of an anime person myself. But here’s my very modest manga collection. Just posted it on My Anime List anyway, so let’s kill two birds with one stone here.
Owned
Case Closed - Volumes 1-31 (all that’s out in English)
Shadow Star (Narutaru) - Volumes 1-7 (all that’s out in English)
Pluto - Volumes 1-5 (all that’s out in English)
20th Century Boys Volumes 1-4 (all that’s out in English)
Monster - Volumes 1-3
Ikigami - Volumes 1 and 2 (all that’s out in English)
Dance in the Vampire Bund - Volumes 1 and 2
Kashimashi: Girl Meets Girl - Volume 1 (omnibus collection)
Alien Nine - Volumes 1-4 (complete series)
FLCL - Volumes 1 and 2 (complete series)
Negima - Volumes 1-11
Lupin III - World’s Most Wanted - Volume 1
Dragon Ball - Volume ?
Chldren of the Sea - Volume 1
Plan to buy
Bokurano
Updated! 
Here’s my list. I will better organize and include all volumes later. I’m not at home to check the exact numbers at the moment. I also have more that allude my memory at the moment.
List
Chrono Crusade Vols 1-8 (OF COURSE!)
Absolute Boyfriend Vols 1-3
Earthian Vols 1-3
FAKE (All Volumes)
Gravitation (All Volumes)
Gravitation EX Vol 1
Eery Queery (Vols 1-4)
Dragon Hunter Vol 1
Death Note Vols 1-4
Azumanga Daioh (ADV Omnibus)
Fruits Basket Vols 1-3
Full Metal Panic Vols 1-3
Full Metal Panic Overload Vols 1-2
Tokyo Babylon (Vols 1-7 )
Angelic Layer Vols 1-3
X Vols 1-13
Yotsuba Vols 1-3 (ADV release)
Loveless Vols 1-4
Until The Full Moon Vol 1
Uzumaki Vols 1-2
Sola Vol 1
Saiyuki Vols 1-3
Princess Resurrection Vols 1-2
Negima Vol 1-2
Tsubasa Vol 1
Ultra Maniac Vol 1
Mubraho Vol 1
Vision of Escaflowne Vols 1-2
DN Angel Vol 1
The Tarot Cafe Vol 1
Skyscrapers of Oz (Single Volume)
Chronicles of A Fallen Vampire Vols 1-2
Anne Freaks Vols 1-2
Cardcaptor Sakura Vols 1-3
Legal Drug Vols 1-3
Zombie Powder Vol 1
Magic Knight Rayearth Vol 1
Yami No Matsuei (Descendants of Darkness) Vols 1-11 (Japanese Import)
Descendants of Darkness Vols 1-11 (Viz Release)
Tsubasa:Those With Wings Vol 1
Vampire Knight Vol 1
Not much of a manga person myself, but I do have some lying around. Out ouf the top of my head, they are:
Gunslinger Girl v. 1-6
The Ring v. 1-2
Gunsmith Cats v. 1-4
Gunsmith Cats Burst v. 1-4
King of Hell v. 1
Priest v. 1-5
Pluto v. 1-5
maybe one or two more series that are escaping me at the moment…
Updated my list. I started a lot of series, only to loose interest in them. There are also quite a few I started too late, and have been unable to complete yet, such as Anne Freaks and Full Metal Panic.
Updated 
Oh man, want to see how much I support manga
A.I. Love You 1-8(complete)
Air Gear 1-10
Ai Yori Aoishi 1-16
Codename Sailor V 1
Excel Saga 1
Genshiken 1-9(complete)
Gurren Lagann 1
Hayate the Combat Butler 1-6
Hikaru no Go 1-2
Love Hina 1-14(complete)
Mamotte Shugogetten 1-6(Tokyopop big)(complete), 1-2 Gutsoon
Mar 1
Naruto 1-10
Negima 1-31, omnibus 1
Pretty Face 1-6(complete)
Ranma 1/2 1-5, 8
Rosario+Vampire 1-6
Sailor Moon 1
Tsubasa 1-2
xxxHolic 1-7
Yu Yu Hakusho 1-3
I thought it would look like more, you won’t believe how much space Negima takes up.
Updated again!
Slow, you should send me your copy of Apocalypse Meow, I think I got volume two, and I lost it somewheres. 
No, no, no! Down, down, down! Mine, mine, mine!
Here’s my collection. I have a couple more things I still need to add…
I just started collecting mangas but I have:
Deathnote 1
Fruits Basket 1-4
Battle Royale 1-3
Vampire Kisses 1-3
Yu Yu Hakasho 1-3
I have read way more than I own that is for sure.
I remember volume 8 being basically hentai. God, that was weird.