Nicely said! We did a gift party last year (about 12 kids), and independently my DD asked if she could have a no-gift party this year and have us pick her out one big present instead (she apparently heard about this idea from a friend of hers). I don't think there's any reason to be worried. (I mean, I might be worried about where they would all go or something like that logistically, but I'm confident your DD will be just fine morally after receiving 30 presents!)