People underestimate the value of the Videoslots reload offers that release in 10% increments. It is 100% extra cash that you eventually get to play with, which can work out more than you would have earned with race money and cashback (not applicable of race money and cashback is withdrawn rather than played through).
...but it's not 100% extra cash though! It's a win win or lose lose situation, if you don't manage to win and have a bleak session you don't actually get the bonus - I don't even bother now when I get the offers as it has proven nigh on impossible to reach 100% for me.