Thanks to Art Buchwald for reminding us, "The best things in life aren't things".
I admit that I do find joy in 'things' ...I just don't have to have 'things' to make me happy. In my "I'll be happy when..." days, I think the joy came from the shopping and buying. My husband was sure I had missed my true career calling...a corporate purchasing agent. I suspect my need for acquiring things was a release valve for the stress created by my career. Today, my pleasure comes from enjoying the things I have...I now actually use my blue and white Spode for everyday.
My grand daughter (3 yrs) finds her joy in rearranging my crystal rose bowls (while wearing my pearl necklace), and I find joy in watching.
I hope you find your joy today.