I like that too, but theres one thing thats trivial, yet still may factor into it a bit.
I know where i go, my parents give a little money. Similar to the gift, its not required that you give, but if you have the money and go the the church, it is almost expected that you give money when the collection plate comes around.
While this money doesnt go to "God" or "Jesus" it does go into maintaining the religion. And while Chrisitanity doesnt say you have to pay, money and the religion seem to work together many times (an old example is indulgences). You dont have to go to church, but many do, and if you have the money to pay, even a couples dollars will do, but nothing...is rare.
just one thing. maybe its different somewhere else.