We looked at Latex, but it scared me because stories of inconsistent color kept popping up. We can't have company logos varying from run to run. I also thought it looked like the Epson had a better media path. We run .030 polystyrene through our Epson and it is semi-rigid. Didn't look like the HP would be very good for that with it's path.
Couldn't be happier with the Epson's quality.