how is the block reward decided?
Depends on the popularity. The more people mine CASH, the reward is smaller.
Haha feels weird but okey thanks

This will be a coin that can worth more then $6 per CASH.... now reward is still pretty high, but let the network hashrate increase to 2,000Mh/s then rewards will be close to 10 per block or 14400 coins per day, then you can understand that this one will be huge...
This is also a way to reward the dedicated miners as well. Once the big rigs move on and hash rates drop, rewards increase again. If you leave your rigs running, supporting the coin, you'll be in place to take advantage of those dips.