A couple of thoughts here...
First, XLN is offering it at a discount.
And second, do they even ask how much you paid for it when you register?
It just seems as though it would go by when you bought and registered it more than what you paid for it (as long as you bought it new).
I won't know for sure until I download, install and register it when the media box comes in.
But I certainly won't turn it down if it is offered. (Besides I like the Electric Grand sound, especially nice through effects like something from Peter Gabriel)