I just found this, which has plenty of detail about what the AHA and governing committee are working on that doesn't benefit members directly. Far more information than most people would want. http://www.homebrewersassociation.org/attachments/0001/6518/AHAGC_subcom_report_2013.pdf
No financials, but it does mention that the conference has been profitable since 2007. If someone were questioning that though, I'd have two points. 1- As mentioned before, it should be somewhat profitable or it would die. It's impossible to run a perfectly break even conference and AHA needs to err on the black side. 2- I'm sure registrations alone do not make it profitable. Lots of companies pay (good money I'm sure) to sponsor the conference.