As of June 29, 2025, airdrop cost-benefit shifts with gas fees dropping to $1-2 on Layer 2s like Arbitrum, but time investment rises (10-20 hours weekly) due to complex tasks. Returns average 15-30% for early adopters (e.g., zkSync), though scams cut gains 10%. Efficient strategies—batch bridging, automating X posts—save hours, boosting ROI. High-effort campaigns (e.g., Optimism’s governance) yield 50+ tokens, but burnout risks loom. Balance time, diversify wallets, and target verified drops for optimal 2025 returns.