Layer 2 solutions are quietly rewriting the economics of blockchain. While most Layer 1 chains hemorrhage billions annually through token emissions and misaligned incentives, Ethereum's leading L2 generates nine figures in annual revenue—a stark contrast that's reshaping how developers and users think about scalability. The business model difference is fundamental: L1s struggle with sustainability through dilution, while L2s capture real value through transaction fees on proven infrastructure. This revenue sustainability might be the most underrated advantage in the current market cycle.