In reply to Jeffro.

Considering that support is provided not just via a forum, but by email and Skype as well, most questions and issues are resolved in 10-15 minutes.

So as Steven mentioned above, such a price does give some breathing room.

Also, something that hasn't been mentioned in this post:
On AcademiaThemes, every purchase includes 1 hour of customization work.
Considering that most developers charge at least $120 / hour, this price tag becomes even more "reasonable", don't you think?