Miracle-Gro Drip and Soaker Kit, regular $40, bought at $0.01. extream YMMV?

http://www.homedepot.com/p/Miracl…lsrc=aw.ds
I was looking for a watering system for my small veggie garden at the Home Depot.
When I saw this drip system at a clearance shelf for $9.97, I thought it was my lucky day.
However, even better, when I scanned this item at the self checkout, it came up as $0.01.
One cent? WOW!