Gloating, in any form, and true friendship are mutually exclusive in my view. The OP can fill his boots if he likes, but if I was one of the "friends" I wouldn't expect a Christmas card from me next year.
If the price had gone the other way, would you be pleased to be the recipient of their gloating? Didn't think so. Setting an example is one thing, gloating about it is a big step backwards.