I am not scared of the magic bands or the RFID chips. I think once the initial tweaks are worked out, I don't think it will be a big issue. Also, I have a kind of different experience I would like to share. I know its not exactly the same but, it helps alleviate some of my concern. I go to a large music festival here in Tennessee each summer called Bonnaroo. This past summer the festival began using wristbands with RFID chips. Every person that attended the festival was expected to register your wristband online before you came and it acted as your ticket to get in each day. If you didn't register it, then they did it for you the first time you entered. It also allowed you to check in on Facebook at different music tents. As we entered the main music venue each day and passed through security, you walked past a large box that kind of looked like a 5 foot tall rectangular security box that you have in stores that alarm to keep people from stealing. To get the box to work, you had to actually touch the wristband to the box on a specific small decal. You could not just walk by it, you had to touch it. Everyone in our group tried at one point or another to see if just waving the wristband would work. It would not. You had to make contact with the box. When you went to the different music tents, to check in on Facebook, you had to touch the boxes. It did not detect you because you were "in the area". So I have faith in what Disney is doing. I don't believe that they are going to track my movements just by walking by something. You will probably physically need to touch the magic band to a sensor. They can track my movements without a wristband anyways by seeing where I use my debit/credit card if they really wanted to do so. Also, if you are worried about a CM not completely ending a sale transaction, then just verify with them that the sale ended. I do think there could always be someone out there that will try to do something sneaky or illegal in regards to the RFID info, but I believe Disney will do their absolute best to prevent it and Disney Legal/customer service is probably covering all of its bases for the possible issues of identity theft. As far as marketing is concerned, a lot of companies now give you the option to opt out of it. I can't imagine Disney not giving you that option for this as well. If they start emailing me stuff and I don't care for it, ill simply click a button and add it to the spam folder. If I get junk mail, I'll add it to the trash can with the other junk mail I get. Overall, I'm not really concerned. If anyone is concerned with anything then they won't need to use this optional program. Whats the worse thing that will happen then? You won't get your 3 fast passes a day, you will have to use your debit/credit card or cash, characters won't know its a special occasion ahead of time, or I might not be able to make a certain dinner reservation. Not a deal breaker for my trip. I'm not trying to be snarky so please do not take it that way. I guess I'm just not as concerned as others.