A couple of new polls on RPG.net
I am also working on a more complete income questionnaire. It doesn't exactly take cost of living into account directly, but it does allow income to be stated in different denominations with locale as part of the information gathered. This could then be imported into an analysis taking relative locale costs of living more into account. This survey (currently being developed) will only be able to be completed by registered users and is not yet available.
RPG.net polls:
Income Posting and Poll:
http://forum.rpg.net/showthread.php?629756-Average-Role-playing-gamer-income
Relationship status poll:
http://forum.rpg.net/showthread.php?629785-Tabletop-Role-playing-Gamer-Relationship-status