I'll try again.
Zetaprints doesn't seem to meet my needs. I asked them a few questions via email (no phone support) and I got an email back just saying: "Doesn't look like we are a good fit. Try someone else." WOW! No idea what's not a good fit, and if I could have lived with those parts not fitting.
I really liked that they only charge $1.70 per order placed, and there were no setup or monthly fees.