I've just started reading the second book on a long list of parenting books. Dare to Discipline by James Dobson. He's discussing the importance of not saturating the child with materialism...
" Pleasure occurs when an intense need is satisfied. If there is no need, there is no pleasure. A simple glass of water is worth more than gold to a man dying of thirst. The analogy to children should be obvious. If you never allow a child to want something, he never enjoys the pleasure of receiving it. How unfortunate that such a child never had the chance to long for something, dreaming about it at night and plotting for it by day. He might have even gotten desperate enough to work for it. The same possession that brought a yawn could have been a trophy and a treasure."
I'm so thankful that as a child of the Lord he has made us "wait" for certain things. Those times helped grow and strengthen our relationship with him. It's made us so much more thankful for his timing and his blessings. It's helped us chip away at our attitude of entitlement and realize what is truly important. Having to wait is a blessing in disguise.