There's plenty of people willing to sit around and do nothing for hours until a ride shows up. $60 in a 10 hour day is fine because you didn't waste any gas just sitting there at the airport and you can go cash out every night and probably pay your $200/mo rent at Cedar Riverside pretty easily.
LYFT is better. Uber is a joke! On campus there's a Movment to delete the uber app and someone handed out flyers with their code to join LYFT, lol. Word is getting out about mistreatment, non tipping and sexism.