@butterfr33
Well if you're happy to be the CF who eats and drinks other people's food and drinks for free then that's your prerogative!
What an incredibly nasty, mean-spirited, spiteful comment. 
And what are you on about anyway?! I said it wouldn't be for me, and I wouldn't go. Why are you being so spiteful and mean? Did I hit a raw nerve or something?
I have my family and friends around for a bite to eat and a drink at Christmas, I don't charge them, and I never have! They have me around, and don't charge me, and never have. We tend to take a few nibbles and a couple of bottles of booze around, but charging family to eat at your house just doesn't sit well with me, and I quite within my rights to say that without being attacked. 
I suppose you have a printed menu at your house do you? 50p for a mince pie, £3 for a glass of sherry, £2 for a bowl of doritos, £40 for Christmas lunch, etc etc,....
Tacky, and grabby. That's what it is, inviting people around and charging them.
I would never have you in my friendship group in a million month of Sundays. I am amazed anyone wants to come to your house. You sound very unpleasant.
And you sound a LOT like the woman you mentioned in your OP! 
The amounts some people are coming out with on here (that they spend on Christmas day food) are outlandish and ludicrous.