Please rate Cubasis LE on iTunes!

Thanks Lars, right now I have cubasis 2 le, and am thinking of buying the "full feature set " for $29.99. If I later upgrade to the full "Cubasis 2 , is there a discount because I have already bought the “full feature set” and/or "classic machines ". I guess I don’t understand a clear upgrade path. Will I lose the $29.99 that I payed for the full feature set when I buy cubasis 2 full?
Thanks