The point of C3, is to catch people in a subscriptions system where you will never have the software on property (it's a rental) so when in a few years when C4 is released if you want to continue using the software either C3 or C4 you have to keep paying and paying, paying for the same software with a few changes ... this is what is C3, C2 with a few improvements keeping the same drawbacks
Summarizing ... pure and hard greed
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Maybe the subscriptions system is due to the fear they have because the tools are getting better and already has little room for improvement ...
There will come a day when they will not be able to justify the purchase of a new product because this will not bring many improvements over the previous one (C4?)
So they ensure that if you want to continue using the software you must pay and pay
With C3 you will not be able to consider not updating to the next version for a while, and to continue working without paying, you must continue paying if you want to continue using it with all its operative functions
When in all those years you have paid as if you had bought it
If you had bought the software you could continue working until you considered updating