People keep saying that there are CFLs that reach full brightness almost immediately. Someone please tell me where I can get these mythical beasts. They absolutely are not available locally(city of 200,000 people). I've bought one of every brand that I could find locally, and ALL of them have noticeable output differences over the first 10-30 seconds. I still use them and they are better than the ones from a few years ago. I haven't gone so far to try and order them off the internet, but lets face it, 95% of people get what is cheap at their local retail store. If they aren't there, they don't get used, and the locally available ones are not that great.
CFLs definitely do last longer than incandescent bulbs in most cases. My experience is maybe three times longer in my best case. Maybe I have crappy power or something. The ones in the bathroom last about half as long as the incandescent bulbs, so I quit using them there.
The mercury thing doesn't really worry me that much, but the big difference is that the power plant isn't dropping the mercury on my floor when I drop a bulb.