Special delivery

It's Election Day in my house. My ballot came in the mail and, soon, it will be in the outgoing mail.
I live in a state where all elections are vote-by-mail. It's been this way for more than a decade and I really don't miss going to the local elementary school, waiting in line and then punching a chad.
Voting by mail has increased turnout and there have been virtually no cases of voter fraud, both of which are very important.
The way it works is that my ballot arrives with two envelopes. I mark my choices, then put my ballot in what is labeled a Secrecy Envelope. I seal that and then put the Secrecy Envelope inside the mailing envelope. There is a place where I sign that mailing envelope and I have to put on a stamp. I'll gladly invest 41 cents in democracy. I can also drop my ballot off at various locations throughout town, like the library or courthouse, where there are locked boxes.
Once my ballot arrives at the County Clerk's office, my signature is compared with the signature on my voter registration card. A bar code is scanned so the County Clerk knows that I've voted -- and that I've only voted once. If there are any discrepancies, the voter gets a call from the County Clerk to clarify why something is amiss.
That envelope is opened and put aside. The secrecy envelope (with my ballot) is put in a pile and safely guarded until Election Day, when it's counted. So there is secrecy and a paper trail.
Although I appreciate the convenience, I find it disturbing that in the 21st century, the most reliable way of voting and counting ballots involves using paper and a number 2 pencil.
Shouldn't we be better than that?