We choose simplicity. We do not sell possessions because we are desperate for money. We are not worried about money because God, our Provider, owns the cattle on a thousand hills. He is completely able to provide everything we need. A simple(r) life is what we desire, in dependence on God, laying up treasures in heaven. We deliberately discipline ourselves to limit what we buy, consume and own. This world is not our home, and we don't need to accumulate things as if it were.
Are we perfect? Do we live as radically as some? Do we have it all figured out? Absolutely not to all these inquiries. But this is what God has laid on our hearts, and we are growing and learning. How has God called you to steward His gifts to you? How has He led you in regards to earthly possessions?