I think it depends on whether this is causing you distress and making it more difficult in your life. Then it would be depression. But I find it interesting that you used word "satisfied" in your description. I think if you really are satisfied and don't feel bad, then it's a very good and healthy place to be. Something that people have tried to achieve by meditation and religion for thousands of years.
I think only you can say how you feel : do you feel sad and empty inside? Or do you only think you "should" want to have all the stuff and do all the "exciting" activities because it's something "everyone else" does?

If it's the second option it might be interesting to look up the concept of minimalism and voluntary simplicity.