Do or Don't: Eyelash curler

Last night, I hung out with my gorgeous friend Susan from Glamour, and as we chatted, I couldn't stop staring at her eyelashes. They were so thick and swoopy and gorgeous. Her eyes looked beautiful and wide awake. Her big secret? An eyelash curler. I've never had one, since I figured it wouldn't do much. But after last night, I'm sold. (Bonus: Susan said the cheap ones are just as good). Thoughts? Do you use an eyelash curler? Am I the last one to the party?
(Top photo of Audrey Hepburn, although I wish I could have taken a photo of Susan's perfect lashes!)