[mreome]

Without adjusting for cost of living this kind of analysis is going to get heavily skewed in favor of the language du jour favored in select tech areas where the cost of living, and average income for almost everyone, is drastically higher. Additionally, many of those same cutting-edge technologies are not going to be represented in many lower cost-of-living areas, where there are still lots of opportunities using more mature technologies (think C# for business applications, or C for industrial applications). This will pull the averages down for those mature technologies, even though they represent incomes that may actually be higher relative to the cost of living.