Buy it online? The link you sent was the same price.

If you want a flip cover, get a Poetic Smart Cover. Comes in tons of colors and has magnets to make the device sleep when you close it. I don't think the linked case does this.

I got my Poetic case on Amazon for $13. It had some cracks in it and I opened a warranty claim with them. Had a new case delivered 3 days later and got to keep the old one.

Link: http://www.amazon.com/gp/aw/d/B00E5NOXM4?pc_redir=1405569311&robot_redir=1

This is one of the authorized resellers of Poetic cases. If you make a warranty claim you need to have proof it came from either Poetic or an authorized dealer (there are two on Amazon and one on eBay I think. They're listed on the Poetic warranty page).