# 6.6 Circulation Loop (Overview)

1. **Acquire**: Buy Common ($50), OG, or higher-tier models.
2. **Use**: Visit store → Check-in → Card payment → BIND.
3. **Earn**: Econ from Mini, EVT & Breeding unlocked at Prime.
4. **Maintain/Upgrade**: Lifespan recovery, enhancements (via EVT, items). Only 100% HP/lifespan NFTs can be listed on marketplace.
5. **Reinvest**: Breed to generate new NFTs → grow them → return to step 1.