I'll go out on a limb and suggest that this could be because
people do not have enough jobs or money. Once you move past basics like caulk and weather stripping, even energy efficiency rapidly starts to cost significant amounts of money. Measures like blown insulation and water heaters are into the hundreds of dollars. Upgrading our windows and AC last year cost $18K.
The recession-driven drop in new home construction is forcing more companies to seek work upgrading the energy efficiency of U.S. homes.
But consumer demand remains weak because of the cost and the dearth of strong financial incentives, which President Obama is now pushing Congress to provide.
...
Historically, about 150,000 U.S. homes have received energy upgrades annually, most via government programs for low-income Americans, estimates Kevin Pranis, research director for Change to Win, a labor union coalition. Some 100 million U.S. homes could use upgrades, Pranis says.
"We look at this as rescuing an industry," says Matt Golden, co-founder of Recurve, a San Francisco-based energy audit and retrofit firm. Recurve has been in the business five years, but other companies are stepping up home energy retrofit efforts, including:
http://www.usatoday.com/money/industries/energy/environment/2010-01-05-home-energy-efficiency-demand_N.htm