Blue essence to get masteries 7

Hello , I'm just a player that wants lvl 7. Why Do i need to give more then Half of my blue essence to get a masteries. Okay if it was 1500 blue essences , it would be okay. But now , I need 3900 blue essences to have a masteries Lvl 7. Don't you think it's too high ? We need to do good games to have those tokens, and now I need to be broke ? Can you lower the price please even tho My messages is going to the garbage probably. Thanks you for your time if you read this.