That is the very same question I would like to know, since I only need the Botanica, which I have and the Eco-system, which I have not purchased yet.  So If I buy the other modules, I wonder if it turns into Pro, if you have them all?

Somehow I doubt it, as there should be a difference in Product Keys.  And when I compared the difference between Esprit with all modules and Pro, there was a price difference.  Also the same for the sidegrades so it seems that e-On wants to keep the two seperate as far as price goes.

So instead of buying the Eco module, I will wait a month of so and buy the sidegrade to Pro, and save a few bucks, and get Infinite next year.  The difference between a sidegrade from Esprit and Infinite is monumental not so bad from Pro to Infinite.  

The other question is do you get credit for the modules you bought with Esprit and then sidegrade to Pro, maybe it works in that capacity. 

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