Too much is never enough.
On average, we have more than we need. When you've covered all of Maslow's needs, and you start to yearn for more, that's when usually problems start.
There's nothing wrong with wanting and yearning and working towards more, but beware of the reason for doing that and make sure you're grateful for what you've got; because wanting more and never being happy with what you've got, will lead down the path of disappointment and depression.
This is why I write these 'daily thoughts' posts.