there is certainly room for savings/efficiency. I've 100% made my mind up, but my mailbox has been BOMBARDED with giant-format postcards promoting the candidates I'm already voting for.
These can not be cheap to print and deliver, and as such they are an enormous waste of money; money that could be used to educate/inform/persuade voters who are undecided or registered with a different political party.
I wonder if a thousand years from now, archeologists digging tough landfills will see a 4-year-periodically-repeating-layer (like a geological sedimentary layer) of these mailings and wonder "what was that all about?"