Spirit's business model all along is to take unsuspecting passengers and hold them up by their ankles until all the change has fallen out of their pockets. They aren't concerned with repeat business. They nickel and dime the passengers, whom only fly a few times a year anyway, into paying more than they think they're paying for air travel. I don't think Spirit is worried about the folks they're stranding. There will be plenty, plenty more ready to sign up after the strike is over for $9 fares.