I agree, when a person achieves one thing it no longer holds it's value. The focus than goes on to another "thing " that" that they need. I do not understand this thought process, other than these things may validate them as a person.
I acclaim that to the way they were raised. What was important as a child usually grows as you age, unless you gain the proper knowledge to what really is important.
I grew up with no material things, no love, and a demand to be "dumb" because I was female. I have a husband's undeniable love. I married for love though? I have my children, and oh how I love them. I have four degree's, and the more i educate myself the better.
I do not have all these things, and I am satisfied with my life 100%.
Maybe they are not satisfied, because the focus is not on what truly makes us happy! People have lost sight in what really holds presidence in life.