Is this because you need to pay out a significant amount of money?

I can't understand why Punters risk $100 to win my $5 on a 20 to 1 shot.
A hundred bucks will kepp me going for a long time , but what is $5 gonna do - a happy meal? - WOW!

Perhaps raven , you need to only Lay animals at Odds on or under say $3.
Then you don't have to lay them for a Huge amount to collect a reasonable amount.