The iPhone 5 listed (at least according to the description) is for a 64GB storage capacity unit whereas the iPhone 5s is for a 16GB storage capacity unit. This actually represents a $100 price cut on the iPhone 5 unit.
As Spiral said, the 64 GB iPhone 5 is $299.99. The 64 GB iPhone 5s is $399.99.
It appears as if this is the leftover stock of iPhone 5 which Verizon has on hand, as it is not even being offered on the Apple website.
You may have better luck with another retailer such as Best Buy if you would like a smaller capacity iPhone 5 at a lower price.