Is there A Baby Shower Cap?

I recently read an article about R&B artist Keke Wyatt's baby shower for her latest child, and the blogger asked if having a shower was considered tacky since the star already has a number of children.

I know a number of women who didn't want baby showers for each child, especially if they had a child of the same sex already. Others see each child as worthy of a shower as a celebration of life.

So, what do you think? Should there be a cap on the number of showers mothers should have for their children?