HAHA I am laughing as I read this. Cause I have the opposite problem.
A friend's mother asked me to make her daughter's wedding cake. Hey no problem, she wants a very simple design. When I quoted her $650 for a cake to feed 250, you could literally see her eyes bug out of her head. Just like this

.
She was like oh that is way too much, and disappeared off my radar for awhile. I happen to see her at a Fourth of July party, she tells me that shes read up on cakes, and that she wants me to make a 4 tier dummy cake, with the top tier real (for the bride and groom to cut), and have kitchen cakes to be served in the back. She proceeds to ask me how much I would charge for that, rather smugly I might add. By this time she thinks she has bested me. So when I did some quick math in my head, I told her that the price would go to $550 if thats what she wanted.
I thought she was going to keel over! I calmly explained to her that I was still using the SAME amount of ingredients, and the SAME amount of icing, PLUS I had to make a cake out of styrofoam as well. I told her that it would be the SAME amount of time, if not more.
She emailed me last week saying that she was only going to order cake for about 150 people. Mind you that they are sending out 300+ invitations (jeez trim the darn guest list if you are looking to save money!). Her reasoning for purposefully not ordering enough cake, was that "People just dont eat cake at weddings anymore, like they used to. So I am figuring that of the 200-250 people that show up, only about 150 will actually eat cake."
I wasnt quite sure how to reply to that, so I havent yet...