Contrary to popular belief, generally the amount that you are gifted has nothing to do with how little or how much money you win or lose. It's all about timing! Casinos want to know that you are spending time in the casino. If you walked in the casino and lost $1000 in 5 minutes, you may get $5 in FreePlay next month.
Casinos often offer free play as a promotional tool to attract players and provide them with a chance to try out their games. However, these free play credits usually come with terms and conditions that need to be met before any winnings can be withdrawn as real money.