Great Deal on books

Layne (My son) came to me last week and wanted to know if he could sell some of his books to buy his own presents this year for his siblings and mom/dad. I told him sure, I would help anyway I could. How sweet of our 12 year old to want to do that. I posted on Craigslist, but no bites. I thought I would see if anyone was interested from Couponing :) Thanks so much for reading :-)
HEre is the listing:
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My son is finallly parting with a few of his books. This was really tough for him to do. He has a wall to wall books in his room and thinks nothing of reading a novel in a day.

Here are the ones he was able to part with because he wanted to earn his own money to buy Christmas with. There are well over 80 books here. All are from ages 6 - 14. He is 12 now.
All are in gift giving condition as well.

I am happy to ship or meet to deliver.

$70.00 for all or I am happy to seperate and sell individually
If you were to go to Barnes and Noble for these books, you would spend well over $300 for them.

Chapter books:
Bionicle
1. Books 1-4 All in one book
2. Book 2 Beware of the Buhrok
3. Legends of Mata Nui

Captain Underpants (6 books)
1. Adventures of Captain Underpants (2 copies)
2. Invasion of the lunch ladies from space
3. Perilous plot of professor poopy pants
4. Preposterous plight of the purple potty people
5. Super diaper baby
6. Wrath of the wicked wedgie warden

Chronicles of Narnia by C.S. Lewis
1. Chronicles of Narnia
2. The Magicians nephew

Dragon Rider by Cornelia Funker
(2 copies)

Hardy Boys by W. Dixon (7 books)
1. Cave In
2. Revenge of the Desert phantom
3. Scene of the crime
4. The Black wing puzzle
5. The Secret of the Island Treasure
6. The Serpents
7. Tooth Mystery

Eragon Series by Eric Tomer Pollini
This was made into a movie
1. Eragon
2. Eldest

Goosebumps by R.L. Stine (26 books)
There are 26 chapter books for this series. I would be happy to list them for you.

Ledgends of Droon by Tony Abbot (7 books)
1. Books 1-4 are all in one book
2. Fortress of the Treasure
3. Moon Dragon
4. Mysterious Island

The Legends by Allen Frewin Jones
1. Books 1-4 all in 1 book

Scooby Doo (5 books)
1. The snow monster
2. The Glowing Alien
3. The Frankenstein monster
4. The Cyber Case
5. The Doughy Creatures

Series of Unfortunate Events
This was made into a movie
1. The Blank Gada-a diary

Spiderwick Children by Tony Deterlizzi (3 books)
This was made into a Movie
1. Ironwood Tree
2. Guide to spiderwick
3. The field Guide

The Bailey School Kids by Debbie Dadey
1. Sea Serpents do not juggle
2. Trolls do not ride roller coasters

Individual Books:
1. 12 dogs of Christmas by Stephen Paul Liera
2. Buddy by Ellen Miles
3. Came Haunting Hills by Bruce Coville
4. Class President by Johanna Hurwitz
5. Cool Cars by Seymore Simmons
6. Dragon Keeper by Carole Wilkinson
7. Encyclopedia Brown by Donald J. Sobol
8. Escaping the Giant Wave by Peg Keretz
9. Mountain Ghost Stories by Randy Russet
10. My Life as Crockadile Junk Food by Bill Myers
11. Rules by ? Lord
12. Sounder by William Armstrong (2 copies)
13. Super Sudoko
14. The Best/Worst school year every by Barbara Robinson
15. The bomb by Theodore Taylor
16. The Dead, The Doomed, The Buried by Jane D. Mason