Yes, you'll get both CDs with the download version, the manual is with it too, as pdf od course. If you want the cds and the printed manual, you can order those separately.

Regarding vouchers, I am not too familiar with, sorry. Too long ago that it happened to me.

Ecosystems? 6 Esprit can read by default pre-defined ecosystems, provided by others. If you want to manipulate or create ecosystems yourself, you need to buy the ecosystem module. But a word to that maybe, especially when you already have tried out the Vue 6 Infinite PLE version. Ecosystems for Esprit (with the Ecosystem module) are not exactly the same as they are in Infinite. Infinite has some special "Infinite only" features for the ecosystems. So what you will get for Esprit as separate module will be what was possible in Vue 5 Infinite. The major features are there, only one is missing, the paint ecosystem functionality is not.

"Must have" for Esprit? Hard to say, depends so much on what you want to do. I would start with Esprit and then read what the available extra modules will bring. Then start working with Vue and see what you are missing most. And then decide.

But if you tend to go "Infinite" anyway one day, do some calculations. And decide then, it may be cheaper to do the hard step in one go, and not update from Esprit to Pro Studio first, and from there to Infinite.

One day your ship comes in - but you're at the airport.