DAZ is encouraging people to buy C5 and then upgrade to C6, when it appears (the 14th?  - that's when the C5 offer ends).   I can get C5Pro for $192.   A bargain, except that I have it already.   I upgraded from C4 Standard to C5Pro before DAZ hoovered up Eovia.   Now there is no indication (that I have seen - delighted to be corrected on this) of how much it may cost to upgrade from C5Pro to C6Pro.   I don't think I have any need for a second licence for Carrara, but it does seem that it may be cheaper to buy Carrara 5 Pro all over again and then upgrade for free, rather than waiting to see how DAZ intends to treat the established customer-base.