As a Chicago director, I think $20 per hour would be a reasonable rate to be comped for my time. When I was simultaneously coaching several groups at $5/head, it probably averaged out to about that in the long run anyways. (btw, I currently get paid $25/hour by the City of Chicago to teach teens improv and I think that's more than fair.)
I know there's a difference in cost-of-living between Chicago and NYC, but for me, $30 an hour seems like it's pushing it unless you're a top-tier teacher/performer/director. For comparison's sake, the average per hour salary for other jobs...
Arbitrators, mediators and reconcilers -- $28.27/hour
Arbitrators, mediators and reconcilers decide or recommend resolutions, penalties and liabilities on claims regarding legal matters.
Annual salary: $58,790
Urban and regional planners - $28.33/hour
Urban and regional planners develop plans and programs for land use and physical facilities in towns, cities, counties and metropolitan areas.
Annual salary: $58,940
Loan officers -- $29.77/hour
Loan officers approve various types of credit loans and advise borrowers on financial status and methods of payments.
Annual salary: $61,930
Operations research analysts - $31.08/hour
Operations research analysts are brought into businesses and organizations to identify, investigate and solve logistics problems through the use of statistical analysis and computer programs. The type of problems can vary depending on the nature of the business, whether it's a production factory or the military.
Median annual salary: $64,650
Personal financial advisers - $31.79/hour
Personal financial advisers work with individuals to asses their financial situation and help them reach certain goals, which can be anywhere from establishing a retirement fund to deciding the best investment options.
Median annual salary: $66,120
Management analysts - $32.72/hour
Management analysts look at a company's structure and business plans for ways to improve revenue and productivity.
Median annual salary: $68,050
Civil engineers - $32.98/hour
Civil engineers draw up plans for roads, airports and other public goods and oversee their construction.
Median annual salary: $68,600
Mechanical engineers - $33.58/hour
Mechanical engineers are involved in the creation of new tools, machines and components, from the concept's inception to the production and testing stages.
Median annual salary: $69,850