Second Baby Shower Etiquette

One of my sisters is having a baby shower in a few weeks for her second child. I was surprised to hear this since it is her second child, though there is a gap between the first child and the new baby. I was also surprised to be asked to contribute a certain amount towards a new crib that costs A LOT of money (she still has her first crib from the first shower that we all bought for her). I have to say that I was irritated by the request and told the sister making the request I wouldn't be contributing towards another crib.

One sister (who is unemployed, in nursing school, and is a single mother) was asked to help pay a third of the hall costs! What gall! I'm going to buy this sister a t-shirt that says "doormat" on it (and yes, I told her I was going to do that).

I really don't agree with this second shower to begin with. I feel that because my pregnant sister and her husband both work, they shouldn't be expecting others to pay for a second shower. I feel that if they want a second shower, then they should pay for it themselves in this economy (especially asking unemployed others to foot some of the bill).