Full support.
I think the support has been amazing so far in email
and also having this message board community where
tech staff and users have been contributing for almost a year now.
Android Market Publishing.
There is no royalty charged, so you build it, and then publish it
Publishing on Android Market | Android Developers
Extra forum support.
Yes, and if you pay, you get extra .zip download files
Lifetime License. etc..
Depends on what version you buy, but I just bought the
lifetime with the 50% off and I'm quite happy, I believe
it was called "enterprise" version
At what point should I purchase one?
After testing the free trial, I think I was sold on it
after a few days.
I been using this for less than a week, and I been
able to interesting things already from trying
the sample projects, and reading through the forum
where they occasionally post test code to play with too.
This is my opinion, I do not work for them, and I
just stumbled on it myself a week ago.