"As a side note: I find that the scaling thing is the most confusing part of Vue, not only AP setting".
 
I find e-on's general attitude with regard to coordinate system/scale/units very sloppy and disappointing. Seems to me they are easily satisfied when  things 'happen' qualitatively the way they wanted, but they are not concerned with checking that their definitions/ operations work rigorously.
Just an example - mostly you define position and scale in real world units (feet, meters etc). In the FE if you obtain the position of an object via external dependencies input node, they are given in internal units not real world units, and thus the results of using these values depend on your conversion choice in the preferences. What's worse - coordinates from the position input node do not seem to be compatible with coordinates from external dependencies (even when the conversion is chosen 1IU=1M). I tried to get a mathematical definition from e-on, with no luck so far. Even the concept of being consistent and providing accurate definitions seems alien to them. It is theoretically possible that I am  doing some things wrong, but I cant debug properly if they arnt consistent and they cant provide me with accurate definitions.I'm still working on trying to get a better answer...

AP: I think a product with AP=1 should be sufficient at least to start with. I prefer consistency within a product to trying to encompass all possible scenarios. It should be possible to add a tutorial or additional cloud items later addressing different Ap settings if required.

V8 vs V7 : personally, I cant see myself invest even more money getting v8, both because of the cost and because I wasnt happy with v7's bugs and e-on's approach to bug fixing . I'm sure there are many more users who will be affected by these factors, but if money is an issue for users, perhaps they wouldnt buy your product anyhow?
I think you'll lose a significant chunk of possible sales, but its hard to know in advance.

Like blaineak and rutra I consider learning from a product(in addition to the objects/mats themselves) a major factor whether its worth buying. In principle, I wouldnt buy any product with nodes I cant analyse. However, at least in V7, nodes arnt truely locked. I can look at the content of a node(and modify it/create related ones/use parts of it ) even if it says it is locked. No illegal hacking required - just clicking on tools provided in the program. I dont have v8 so I dont know if that is still possible or not. I imagine it would be possible for e-on to fix the loophole fairly easily, but I find the concept of prevent dissemination of knowledge repulsive. So I would boycott products with locked nodes if they are truly locked.

"I paint that which comes from the imagination or from dreams, or from an unconscious drive. I photograph the things that I do not wish to paint, the things which already have an existence."
Man Ray, modernist painter
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