This block reward decrease is mostly about eliminating the dilution and providing a 30 year incentive to continue mining. If we were to mint all coins within 3 years, miners would only participate with higher minimum transaction fees. Fees like that could cripple a coin before it gets off the ground.

With regard to the number of coins, 38 million coins is likely sufficient to support casinos at this time. Reasonably, we'd like to crack that $150 - 200m market cap level as adoption of CSC grows. If we make it to top 5 I think we should have a good shot at staying there.