Seasons 1,3,4,5 21.99 and Season 2,6 22.99
That's the lowest I've ever seen them.
www.amazon.com/Supernatural-Complete-First-Season-Blu-ray/dp/B001ECQ4AS
http://www.amazon.com/Supernatural-Complete-Second-Season-Blu-ray/dp/B004PHSTY8/
http://www.amazon.com/Supernatural-Complete-Third-Season-Blu-ray/dp/B0017YDPI2
http://www.amazon.com/Supernatural-Complete-Fourth-Season-Blu-ray/dp/B001FB4W0M/
http://www.amazon.com/Supernatural-Complete-Fifth-Season-Blu-ray/dp/B002JVWRAY/
http://www.amazon.com/Supernatural-Complete-Sixth-Season-Blu-ray/dp/B003L77GGU
That's the lowest I've ever seen them.
www.amazon.com/Supernatural-Complete-First-Season-Blu-ray/dp/B001ECQ4AS
http://www.amazon.com/Supernatural-Complete-Second-Season-Blu-ray/dp/B004PHSTY8/
http://www.amazon.com/Supernatural-Complete-Third-Season-Blu-ray/dp/B0017YDPI2
http://www.amazon.com/Supernatural-Complete-Fourth-Season-Blu-ray/dp/B001FB4W0M/
http://www.amazon.com/Supernatural-Complete-Fifth-Season-Blu-ray/dp/B002JVWRAY/
http://www.amazon.com/Supernatural-Complete-Sixth-Season-Blu-ray/dp/B003L77GGU