A friend of mine had a wedding at a hotel that gave him points for most all the bookings there. His wedding was definitely not a cheap wedding so it must have been quite the number of points that was the net result too. Was he greedy? I have my doubts, for the couple asked that wedding gifts, if any, come in the form of charitable contributions to their favorite charity or as volunteer time at the same charity (or a like one in their communities).
If this is about the marrying couple's material gain at your expense, do you make sure that the wedding gift you give no more than matches penny-for-penny with the cost of the meal you are eating and associated service/entertainment? Should a marrying friend be upset if the wedding gift value doesn't cover the cost of the wedding? In response to both questions, I would hope not. I value my friendships and attending a wedding far more than c. $20 (if that) in foregone (if at all foregone) points. Apparently others don't.