Since this thread was started, I've been keeping an eye on the amex gc's on ebey. I noticed that they generally do sell at significantly higher than the actual value -(although not as much as the link in the op). So guess what I did - I listed an amex gc for sale on ebay. A couple of hours later I got an email from ebay that my listing was removed bec it is against rules to sell amex gc's on ebay. But I can't understand this bec everyday there are a bunch of amex gc's listed??