Another is that we're all forced to use CFLs now but a laboratory working for a german TV magazine apparently found out that
they emit carcinogenic gases.
Link is in German because I cannot find one in english, google translate may be of help.
Add to that that if they break, they poison the whole room as well with all the heavy metals etc. in them.
And thanks to the EU, we cannot go back, LED may be an alternative but they're still expensive, not always suited for the same tasks and who knows how poisonous they are?