Some get elected. Half of the candidates with the highest personal dollars invested ended up winning the election - a point of aggravation for those who believe tax dollars instead of individuals and political action committees should pay for elections. If they lose, they lose big.
Political contributions dry up after defeat and the only way to recoup costs is lost.
Most forgave their personal debts and swallowed their losses. Only two unsuccessful candidates paid off their loans, which were among the smallest amounts handed out. State House candidates can donate unlimited funds to their own campaigns, and every race in northern Michigan saw at least one candidate funnel a sizable personal loan into the election battle. You'll find this all over the state. It's just the way it is.