The readers share what is the best thing for them money can't buy. Here are some of them I really like

A shoulder to cry on
Time (when your loved one is about to leave this world. It's my own experience with my parents.)
A thoughtful love
An unconditional love from a doggie (and any animals!)
A loving hug
An apology
Being born to a parent who really loved their children
The sensation of knowing for sure what I really want to do
Friends
Forgiveness given or received (or even witnessed)
A smile
Tears of joy
Wisdom through age

What is yours ? :)

Source: Real Simple