The New Adorama XPLOR 600 PRO TTL Offers More Features

We rated the Adorama XPLOR 600 monolight very highly when we reviewed it; and now we've got sort of an upgrade. The new Adorama Flashpoint XPLOR 600 PRO TTL monolight is apparently not being billed as an upgrade; but instead it's going to live alongside the original. Why? I'm sort of not sure.