Hi Debbie, thank you so much for your questions. It can be confusing - in fact I just re-read the first piece you linked and realized it wasn't as clear as it could be, so we're doing some rewrites on the limitations of the student editions.
So on to your questions...
3. Actually, they can be upgraded at any time - but only to a commercial version and not to another education version.
4. Just check Adobe's discounted pricing for regular commercial upgrades - it's exactly the same for upgrades from academic software.
Hope this helps!
Thank you so very much ProDesignTools! That definitely does help, all of it!
I hope you have a wonderful day, I'm off to convince my poor husband that I need to spend more money. Sure glad he's in a good mood! lol
Great Debbie, glad to help - and good luck with it! Hopefully these products will be an investment that will pay you (and him) back later.