Love this game but....

I am absolutely addicted to this game BECAUSE of the garden designs; the graphics are beautiful. However, the game matching itself doesnt add up. Ive spent $1200 on this game for coins to purchase boosters (WHO THE HECK DOES THAT?? I know)
1) A booster cost 300 coins but the most coins Ive gotten in one game even when I finished the level with one move was 148.
Rainbow blast: 3 coins
Bomb/Dynamite: 2 coins
Firecracker: 1 coin
Regular match with no boosters: 0 coins

2) You get 1 star per level. The majority of designs is 3-4 stars. The higher up the levels you get, the more stars are required to build stuff. So, you would assume the levels give you more stars but sadly no, its still 1 star.

3) The hard red levels are impossible to win without boosters. Spent a week on one level trying to complete it and it was impossible. It required me to pop acorns. I had three moves left to pop 1 acorn. The last three moves had no acorns come on screen until I ran out of moves. I finally beat it by purchasing a continuation costing 900 coins.

4) The rewards you get (ex: infinite life for 2hrs) you cannot save for later, it automatically starts once its rewarded to you. So its 10pm and I need to sleep but the infinite life for 2hrs is already counting down, so that just went to waste.

5) Ive reached level 1601. This is where the game ends for now because there are no new levels. Im assuming this game is still fairly new. But I cannot finish building my garden because there are no other ways to get stars.

Also, am I the only one that thinks this game is kind of a scam??

Alemany072214 about Gardenscapes, v1.7.0