Last August my brother came down to Orlando and purchased a 2 Day/2 Park pass. The cost was like $99 + tax. He used one day in August of 05 and came down for a visit 2 weeks ago. Just for kicks he decided to see if he could upgrade his pass to an annual pass. Took it to vacation services in one of the parks and they charged him about $13. The difference from the price of the Power Pass (with tax) and the original price of the 2 Day ticket. His pass now expires in March of 07. Not too shabby I think. I thought they would have taken the unused value of the ticket and charged the difference. Haven't searched on this so sorry if this was already posted, though if not, hopefully it helps someone out.