I was minority clerk at Ward 14 District 8 of The County of Allegheny for years. I grew to hate those big old steel voting machines. I did a real number on my back trying to move one once. BUT! The old machines left a paper trail with a vengeance. There were copies and more copies of the voting record. I've still got mine. I think I could throw them out, but I don't dare.
The other thing I hated were the *&^%$#@#@$^%&*><><&^%$#@!@#$%^&!!!! funny write in votes.
Oh how I loathed those merry pranksters who wrote in Lance Ito, Howard Stern, O.J. Simpson, JLo. We could, safely, ignore the votes for cartoon characters. But not the jokers who wrote in real people, blissfully unaware that they had added an extra hour to a very long day.
Now, consider, some clever undergraduate hacks into the touch screen voting system, and fixes it so that Space Ghost is elected mayor of Cleveland.
What do the good people of the city do? They can't have a cartoon character as mayor.
A paper trail would be a useful thing, even if it would make more work for minority clerks everywhere.