Wow, I had to check the math and with my assumptions it does in fact take >2 hours of minimum wage labor to power a CFL for 1 year ($7.25/hr, 0.14$ KWh). It's much higher than I expected. I had the notion that turning off CFLs was hardly worth my time but that's not entirely true.
Varies with electric rates of course, but this is still a useful estimate.