Seriously though when the developers need cash it seems like everyone in the game gets zeroed out. I have news for you developers $100 for 100 spins when you just spent the last week doing 1000s of spins with 0 wins is not a deal and not worth it whatsoever.
If you play smart and do sock pile some coins then the games updates and you will lose until you hit 0 at which point the game starts flooding you with offers to spend ridiculous amounts of money on a couple spins. If you do end up spending money on it the game actually seems to make you lose more. The club environment is fun and the games offered are pretty similar to those you find in Vegas.