This is a good example for ways to earn from gambling without having to open a bet first but for you to be eligible for this program, you would have to gambled lots of money and you would have lost a big percentage of the money hence the casinos are still making profits.
For the VIP,
Since you have to make bets (not just small number of bets) , then your already open bets to get the VIP, it's a good example but it require opening bets

tricky huh!
Besides, not everyone who attains this achievement finds it to be rewarding compared to what they had to go through just to get it, there are those with different story though but it sure require alot of bets and I believe casino would have made some good profits off such before consideration.