Permanent discounts can prove to be a bad idea too, like the American Airlines lifetime passes. http://articles.latimes.com/2012/may/05/business/la-fi-0506-gold

Permanent discounts can prove to be a bad idea too, like the American Airlines lifetime passes. http://articles.latimes.com/2012/may/05/business/la-fi-0506-golden-ticket-20120506 http://articles.latimes.com/2012/may/05/business/la-fi-0506-...