What you can and can't buy

I hadn't heard about this issue in a while, so when it came up again, I thought it would be interesting to discuss. In 2007, Bush signed a bill which pretty much mandates beginning next January you can't buy incandescent light bulbs anymore, so people will be pushed to either CFLs (which may not be as efficient as people believe?) or LEDs. I always find it interesting, albeit a little disturbing, when the government mandates you can not buy or do something for the, supposed, greater good. Is this something the government should be involved in? Is it even right for the government to be involved in this? Who decides the greater good? What if one just doesn't want to care? And these sorts of "greater good" issues spawn a whole slew of other questions and issues.