The five factors that set the value
- Model and efficiency — newer generations with lower joules per terahash stay profitable longer and hold value better
- Working condition — units that hash at full speed are worth more; failed hashboards, fans or PSUs reduce value, though repair can recover some of it
- Quantity — commercial, bulk lots attract serious buyers; single units are a retail market
- Market timing — Bitcoin price, network difficulty and halving cycles move used ASIC prices quickly
- Power costs where units resell — older generations still have buyers in regions with cheaper power