Personal privacy hasn't existed to any great extent for years. Credit card companies know what you spend and where, as do banks. Your movements can be tracked to a certain extent by ubiquitous surveillance cameras. Having an RFID chip that identifies me to a ride and offers "personalization" within the experience or being able to charge purchases seamlessly is the least of my privacy worries. Living "off the grid" may seem vitally important to some, but I neither care nor worry about it. I'd rather have an RFID implanted that can contain every single piece of information about me, all my credit cards and my various and sundry Government-issued ID including my Passport than carry all that crap around with me constantly at the risk of being lost or stolen, let alone having to sort through it all to find the currently required one. As long as only those who need to see specific bits of the data have access to it, why would I care if it's all in the same chip?
I'll take whatever Disney develops and use it to my advantage in whatever way I can.
Yes, there is a LOT of our information out there. No one is worried about it much right now, because for the most part the holders of that information keep it very close, and benefit from it in ways that keep the individual data producers (you and me) mostly anonymous. The information from a cashless theme park pales in comparison to the amount of information Wal-Mart, your ISP, cell provider and financial providers have on you. You're right.
One thing I find interesting about this is that it could be the 'public debut' of this kind of information tracking. Don't think that other companies won't be watching. If the general public's reaction is a collective shrug, then that's a green light for Wal-Mart to start having the plasma TV at the door talk to you by name, and tell you about the great price on a DVD you might like. Or for my ISP to sell off my web surfing preferences to a direct mail company. Or for your cell provider to send you a text message to check out the great pizzeria two streets over from where you are right now. Where exactly do you, and do we as a society draw that line? Most would say it's ok for that information to be available if we seek it out, but at what point does it become allowable for them to push it to us?
Maybe only while we're in a theme park?
What if you leave your RFID theme park ticket in your wallet after your vacation, and it starts interacting with a kiosk down at Wal-Mart?
I'm sure there are very good honest imagineering applications for the technology. I'm not worried about what the creative types are going to do with the information. I find it very hard to believe that this kind of money is being spent for you to 'use it to your advantage', and for 'good show'. This comes down to being able to track and maximize guest spending, improve the bottom line, and produce more profit.