Sorry, I was a bit befuddled when I posted above --trying to carry on a conversation with a college-age daughter while tappity-tapping away.
What I was trying to say is that closing it won't hurt you now, but depending on the age of your other cards, and depending on when AmEx stops reporting it (should be for 10 years after closing, but that doesn't always happen), you could be hurt when you eventually lose the history.
And if it were a credit card, and its credit limit were included in your overall credit limit, it could potentially hurt on closing by reducing the amount of available credit. But since it's a charge card, it should be showing up in that "other" category and not factored in your overall util.
So short term, it shouldn't hurt; long-term, it might, depending on any other old accounts you have.
If you used it a lot, I'd say ask for a fee waiver, but since you don't use it much, I don't know if they'd be willing. Alternatively, you should be able to open a non-fee AmEx card and the history on the green would transfer over, *
I think. *
* Credit is a wonderful servant, but a terrible master. * Who's the boss --you or your credit?
FICO's: EQ 781 - TU 793 - EX 779 (from PSECU) - Done credit hunting; having fun with credit gardening. - EQ 590 on 5/14/2007