Okay, I just came across a site that compares the prices of magazines.
This is the info for Ferret Magazine:
 
Best Price for Ferrets Magazine
Get 6 issues for $10.16 ($1.69 per issue) from BestDealMagazines.com with
coupon code "AMAZBARDEC".
 
Get 12 issues for $20.20 ($1.68 per issue) from Mags On the Net with
coupon code "SIZZLE12".
 
*BEST VALUE* Get 18 issues for $27.95 ($1.55 per issue) from Mags On
the Net with coupon code "MP52".
[Posted in FML issue 4942]