We Can No Longer Recommend First's Magazine

First's Magazine has been having problems with their guest authors for some time now, and I've generally ignored them. However, the errors contained in this month's issue are so egregious that I am compelled to advise against subscribing, reading, or recommending the magazine any more.  Greyhound's Books has been advertising in the magazine for quite some time, but will do so no longer. An article by an individual named Evan Klein is extremely poorly  researched and misleading as he  feebly attempts to provide values of the science fiction Hugo Award winners. Below are some examples, with 3 prices from reputable dealers, and Klein's guesses:
 
Jonathan Strange & Mr. Norrell
New York: Bloomsbury Publishing. Fine in Fine dust jacket. 2004. First Edition; First Printing. Hardcover. 1582344167 . A stunning First Edition/First Printing in unread Fine condition in alike First State cream-colored dustjacket  SIGNED by AUTHOR Susanna Clarke  $ 90.00  (ABAA Dealer)

NY: Bloomsbury, 2004 FIRST EDITION, FIRST PRINTING in the WHITE DUSTWRAPPER in the FIRST STATE BINDING with RED ENDPAPERS. (All subsequent printings have white or black endpapers.) SIGNED and DATED (9 Sept. 2004) on the Half-Title Page, WITH A PRINTED SHEET OF PROVENANCE from THE FIRST STOP ON THE AUTHOR'S FIRST SIGNING TOUR, at THE MARGARET MITCHELL CENTER IN ATLANTA, laid-in loose. (For those who care about such exclusivity : this is one of about only 100 copies in the White wrapper which were the VERY FIRST Ms. Clarke ever signed!) WINNER of the 2005 HUGO AWARD for BEST SCIENCE FICTION NOVEL OF THE YEAR!  
$ 100.00 (Very reputable dealer)

Greyhound's Books price for F/F unsigned 1st:  $18.50

KLEIN’S GUESS: $ 200.00 - $ 400.00 FOR AN UNSIGNED COPY

The Yiddish Policemen’s Union
[publisher: New York: HarperCollins] First Edition Hardcover. First Edition (first printing). Fine copy in fine dust jacket. Film rights for this book have been purchased by the Coen brothers. Signed by Author on title page. [New York, NY, U.S.A.]  $ 40.00

[publisher: HarperCollins 2007] First Edition Fine in Fine dj, US First Edition, First Printing Hardcover Protected in clear Mylar cover. Bubble wrapped and shipped in a box. [Carmel, IN, U.S.A.]  $ 12.50

Greyhound's Books price for F/F unsigned 1st:  $18.50

KLEIN’S GUESS: $ 100.00 - $ 200.00  FOR AN UNSIGNED COPY

Who would you buy from ?