One of the potential issues that could come up with more technologically advanced methods of voting is the possibility of tampering. It turns out, for example, that the manufacturers of the voting machines used in Ohio in 2004 were owned by huge conservative financial interests like the storied Koch bros. So that's kind of suspicious right from the start. Same with online voting — how are we able to verify that the votes Comcast transmits are really the votes that were cast? This requires a level of faith not only in the manufacturers, but at the regulatory bodies that oversee them. One of the reasons Wall Street can get away with so much is because the financial tools they have developed are so complex that few people really understand them. And anyone at any government agency who catches on is quickly offered a seven-figure job. The same thing would happen with the regulatory bodies tasked with overseeing these voting systems. You could never be sure if the vote you cast was actually tabulated.