If it makes action on your bet guaranteed then maybe (?) . Like a security deposit on the relay for a verification check ( see saylor’s orange check / blue check ) on spam bots . Deposit will be used to pay if one bettor does not zap the other within an x amount of time after final score . Also if rake by the relay is low enough . Other than that peer to peer( sats ) betting and the ability to propose your own terms of the bet and uncertainty of your bet getting action makes nostr bets unique . Sports betting in person( peer to peer) , local bookie , sport betting sites are already available . Its the betting in sats and against random people and yet nobody has ever not paid up on a loosing bet ( except for a bot 😂) is what makes it more fun.