I started to read the book "The paradox of choice" as many people suggested to me and I ran down in one of the chapters to an interesting pay off theory established by kahneman and tversky which could be illustrated with the following picture:
http://journal.sjdm.org/12/12502/jdm12502001.png
Now this picture say 2 things.
First rule
If you give people a choice between gainning 100$ or having 50% chance to win 200$, they will take the 100$
But if you give people a choice between losing 100$ or having 50% chance to lose 200$, they will take the 200$
So people are more risky when it's about losing something then when it's about winning something. It seems that winning 200$ is not percieved as twice more than 100$, instead you would need to have 50% chance to win 250$ or 300$ to make it accepted.
Second rule
People see the loss of something twice worse than the gain of something. So -100$ is twice worse than +100$. This could be important in game design to balance resources to pay or sacrifice versus gains.
One game that come into my mind is Twilight Struggle. When you play a card of opposing faction you feel like you are losing more than gaining something. But the problem is that it could simply be a matter of perception.
If a card mathematically gives you -2 and +3, it will be perceived as -4 and +3 which makes you feel that you are not progressing, but mathematically you are progressing.
So this is it. I think designer should keep that in mind since in certain game situation, that player misperception could show up.