Lets say there are two players aged 18. Both are exact same position, both with exact same statistics in everyway. Only difference is cost of the players. Lets say one is twice the cost of the other and they are both 3 stars on your level.
Are you guaranteed that the more expensive player will gain more training/skill points quicker?
And is it more likely that the more expensive player will be consistently better performer?
Just trying to see if there is any benefit to spending more on players in same positions with very similar statistics.