I love how somebody posts this amazing deal for $9.99, then somebody else responds saying they got two for $200, plus tax, as if that's still a good deal! Dude, you paid $200 too much!
I've ordered from Wirefly.com several times. Honestly can't imagine ever buying a phone any other way. Same phone, same warranty, same service. You can still go to the Verizon store with any warranty issues.
So practically, it's no different from getting your phone at Radio Shack, or at any other local store that says Verizon over the door but isn't actually owned by Verizon.