I see it all the time on mumsnet. You have real presents, and then 5 books, 3 puzzles, 2 board games as filler presents. I can't count the number of times I have read that books are not presents, that is something you give every day.
In my house all these presents are real, nornal presents, nothing that has to be filled with something else.
So what is situation in your home? Can you give your child a board game, a book and a puzzle for birthday or you have to buy something else because your child would say they got nothing for birthday?