I have a big-mouthed brother in law who's super cheap. When they got married they had a friend do the ceremony (free) they had their friends bring food to their house (free) and they had a friend who made their cake (free.) So he's convinced that anyone who spends ANYTHING on a wedding is an idiot and he used to say it all the time. He would say "How's the sucker business" as a greeting to me, until I got tired of it one day and asked him how much work he thinks goes into a wedding cake. He hemmed and hawed while I gave him a lecture about people being able to spend their own money any way they damn well want, and how the person who made their cake did them a big favor even though he doesn't seem to appreciate it. Then I asked him how his sucker business is, since he's a sales rep for a vitamin company and he goes around selling snake oil to people. He said "Those make some people feel better" and I told him that having a wedding and a reception make people feel better and they enjoy themselves, so he should just STFU. It took me a few times of him asking about the sucker business before I let him have it, though, since I was always so surprised that he would be so rude about it.
Wow...I feel sorry for your sister! If he was that cheap then, think what he's like to live with now! BTW how DID your sister feel about their bargain basement wedding?
HAHAHAHA! Good question!