As for lack of upgrade options from earlier versions, e-on don't appear to be alone in this respect. I was a Carrara 5 pro user and missed the 6 pro upgrade because it never seemed to become stable but now that 7 pro has been released there appears no route to upgrade from 5 pro, so I am, as you say, out of the loop.

I am glad that there is "currently" an un-publicised upgrade route from Complete to Infinite for those who wish (or can afford) to take it but the question is, how long will it be there? Currently, I don't have any need to upgrade as the extra features that Infinite provides are not ones that I require, plus the price is far more than I can currently afford (on disability at the moment) but should I need to upgrade to the Infinite (professional) platform at a later date, will there still be a route available? This has been my worry all along, that they seem to be intent on removing the upgrade route from the Artist line to the Professional line, which I think is wrong and until they provide an official, published upgrade path, nothing has changed - that worry still remains.