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Everyone likes more rewards, thing is how to create real value. Its not an easy thing to achive, Splinterlands have been doing a nice job though.

That is perfectly right, value is the keyword here, when it comes to anything, as long as it has been given value under its context it should perform well, then it is a matter of balancing demand and supply to be exactly where the developer intends it to, in this case, in a healthier spot.
Splinterlands has been doing a great Job indeed with that and I am looking forward to more results in the future!