When Ethereum's MEV (Miner Extractable Value) rewards exceed 30% of miner income, miners may alter their behavior to prioritize MEV opportunities. This can lead to increased transaction reordering and front-running, affecting transaction finality and user experience. Historically, such shifts have resulted in a 15% increase in transaction fees. Monitoring MEV activity and miner behavior can provide insights into network health and potential market impacts, aiding investors in understanding the broader implications of MEV dynamics.