My motivation is to simply be happy. Money is mostly a tool, and it's a tool that has been a major factor in unhappiness and unrest in many people's lives, and even whole countries. I simply want to make enough to provide for my family, but mostly to have enough to where, come some Sunday morning, I can wake up with a cup of coffee and simply watch my kid smile and kiss my Wife.
Don't need to be filthy rich to do such a thing.