The moment fully legal U.S. prediction markets go live with lower fees, tighter spreads, market-driven odds, and instant settlement the traditional sportsbook model gets exposed for what it is: a high vig, low innovation cash cow. DraftKings can’t match decentralized liquidity, can’t update odds as efficiently as markets, and definitely can’t compete with a system where smart money actually shapes the price instead of a house trader engineering margins. If Polymarket (or any regulated on chain exchange) enters the U.S. with the same user experience but legal clarity, the old sportsbook model stops being competitive overnight. Bettors don’t stay loyal to brands they stay loyal to better odds and better payouts. And on that front, DraftKings simply can’t win.