Terrible endgame

All of the reviews about the first portion of the game are correct, I played almost nonstop and loved the game until I finished the story mode and became "battle king", then it took a bit of a nosedive.
1) it is nearly impossible to make it to the end without purchasing the $9.99 founder pack, you just cant get the money for items and keys/energy take way too long to generate.
2) replaying levels does not provide nearly enough money to purchase any items you finished the game without, I get $4000-6000 on the second to last level in the game, but the cheapest of the items I have left is around $500,000. Thats 100 replays of the same level for one item.
3) the pvp seems to randomly award trophies, so you have no idea if youll get 6 or 20 for a battle, meaning it can take forever to progress, and theres no real variation or incentive to do so other than the ranks.
4) the pvp items you unlock for ranking up would be great, if they didnt cost hundreds of thousands, while pvp battling provides 0 gold. So you have to replay story missions hundreds of times, in addition to however many pvp it takes to unlock the item, for a +1 to one stat.

P. M. U. A about Battle Gems (AdventureQuest)