If you're removing the candidate list from the side you keep, that means that the barcode somehow has your specific ordering of candidates stored. While this may be encrypted, the computer has a way of knowing for that specific ballot, what each option is for, which means that someone, somewhere, has access to that key to be able to determine how to get the per ballot candidate ordering.

That key will be much easier to get access to than people think, and once you do, you've compromised the secrecy of the entire election. Walk into your local election clerk's office and see if they're the type of person who could safely store and maintain a vital electronic key.

When you pay your electric bill, you typically pay a flat rate (a connection charge) to your electric company for the transmission system, and a per kwh rate to them to buy electricity from any number of generating plants. Use 1 kwh or 1000kwh, your payment stays the same. Now if you want to jump to the next level (1ph 120v to 3ph 480v) then you pay a higher connection charge, but still don't pay more for your usage for the /transmission/ of the power.

If you want to follow that model then I'll gladly pay AT&T $5/month for their network transmission services, and a per MB rate that they can pass on to the webmasters and hosts of the websites that I visit.