I don't know whether lost AP passes are charged a replacement fee or not since I've not lost a pass, but if you lose your drivers' license or passport or birth certificate or any other "valueable" document, it is not replaced for free as far as I know. After all, Disney didn't lose the pass, so why should they swallow the cost of replacing it. Now damaged or de-magnetized passes are a totally different thing. I agree, with the other posters, an annual pass should be designed to actually last for an entire year.