@MountainGoat - thanks for the suggestion.  We feel that 2,000 satoshi is sufficient to get a feel for the game, gain trust with us as a company, and occasionally get a cashout from free faucet.  Anything beyond that, especially since we have multiplayer games, we could get hosed by people colluding together or creating a network of accounts and doing intentional multiplayer losses.
You can expect other surprise bonuses though soon - we are working on progressive jackpot type rewards for both milestone bets (every X bets) and also random jackpots for playing.
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