Having it just for metamagic is better than having it for everything, but I can’t see myself ever using metamagic points on quickened for a cantrip, so that would make quickened useless for me. Most of the objections that I saw had to do with fireball. A better option for me than excluding all spells from quickened would be to only exclude fireball from quickened but let other spells be used.
I usually find that Quicken is most useful when you need to take your action to Disengage/Dash/Hide (or drink potions when they cost an action). I agree that Quickening a spell to cast a cantrip can often be underwhelming: "My firebolt hits and deals 2d8...rolled for 6 damage! :/"
Also thanks Rag. I'm pretty sure I know what the results of this poll will be, but hey maybe posters will surprise me!
