Apple Smart Cover for iPad mini for $15 + free shipping
Click Go and Buy via Rakuten Shopping offers the Apple Smart Cover Dark Gray for iPad mini in Dark Gray, Green, Light Gray, Pink, or Red for $14.99 with free shipping. (It's also available in Blue, but it costs $5 more.) That's the lowest total price we could find for this case in any color by $5.
A very similar deal was also reported by: