I am considering purchasing Florida resident annual passes for my family for Christmas, with the free two month promotion. Ideally, I would prefer to purchase the Power Pass, with the option to upgrade to Preferred later if so needed. I called the ticket sales office today but I was unable to elicit a coherent answer from the agent. He said that the upgrade would cost between $50 and $120 (even though the current price differential is $60) depending on ticket useage and other factors? Huh? He said it was not necessary to renew the passes when upgrading, that your expiration would stay the same, but couldn't tell me how much the upgrade would cost. I would assume that it would be the difference in what I paid for the Power Pass ($165) vs. the cost of the Preferred on that day, no? Also, they won't ship Florida resident tickets to me (must show proof of residency), i was hoping to put something under the tree. Options?