I kind of agree with Mike.... the 12 oz. Wiz Bang poppers I've seen in the Gold Medal catalog tend to look like the "free popcorn at the bank" type of machine, at least that's my perception of them.
I have both a huge Gold Medal 32oz. 2011ENB "Pop-O-Gold" floor model with the neon header, and a small 12 oz. machine. The 32oz. machine is the main popper inside the concessions building, while the 12oz. machine is out in the concessions trailer. My concessions girls absolutely refuse to use the 12oz. machine. They would rather pop 3-4 batches of corn in the big machine and carry it out to the trailer and put it in the warmer, as opposed to messing with the 12oz. model.
The 32oz. machine is so simple - buzzer goes off, push the oil button, load the corn and flavacol - buzzer goes off - dump. The 12 oz. machine is all manual, never pops the corn all the way thru, and it's a pain to clean up.
I couldn't imagine using a machine any smaller than our 32oz. In the summer it litterally runs for 3-4 hours straight... and we're a drive-in.