ha-ha. i'm at 103 lvl and it feels like the game is only starting here for me maybe because i'm not a coiner and nothing will let me spend money on something that i can take free (all in this game i can get free just waiting a bit and that's all).
That's why i do not regret that my power is only 40 000 000, set is Lightbringer's and so on. What is the use of power if you can't have fun from game? For me buying (gems, heroes etc) is cheating and cheating in games is no good for fun, it ruins any game you play.
Turn all your complains on yourself, if you want always win by money then you will never be a winner because there are many of those who have more money than you.
However your game is too fast, it's almost as you buy chewing gum and swallow it instead of chewing.