Computer based Voting Machines, while wonderful at getting results in quickly, will be functionally useless while the life of a Computer can be measured as 1, maybe 2 Elections. The cost of upkeep and replacement is simply too high. How many Polling Officials could be Employed, yes Employed and Paid, to work at an election for that $1b to replace the machines. Machines that would need to be replaced every other election cycle, assuming no-one finds flaws in the SSL version they use, or compute powers makes the encryption key too short. Paper and a Pencil works, it works in a bunch of states, it works in India's ~1.2b population, it can work in the US. Hire people to check and count, because they will have to do it anyway after the challenge to the e-Vote.

Well, Assuming that you are a domestic consumer with personal video's the way you talk about it... Tape is prohibitively expensive, RAID with Hotswap is probably a better option over a parked drive. If you need disaster proofing, then something like IOSafe is worth investigating. Fire and Water rated storage. https://iosafe.com/ IOSafe also has USB drive and NAS options. I am not affiliated with them, but do use them.