Do the American Idol finalists have a choice about going on tour?

Normally, the finalists (top 10 or 12) of American Idol all tour for a year afterward. Are they required to do this? Does anyone refuse or drop out? A couple of this year’s finalists don’t seem to have their heart into it (Jason Castro, Amanda). What do you think they get paid for the tour? Some of them seem like they’re on the verge of launching a music career (Syesha) and should do it for free.