Austin, the commercial Osterizers were often demonstrated and sold at state fairs and home shows, much like the Vita Mix.
Jeff, it's fun to see your collection again and the green wall color is great! I remember the Cyclomatic like the style you use daily, mine, and the only vintage blender I kept for the move to California because the Cyclomatic is also my favorite, is the one you have between the model 11 and 12, which I think predates the one you use.
If you take an Osterizer from the past 15, 20 years and compare it to one more than 30 years old, the difference is just amazing even though they don't look that different. The older ones have higher wattage motors, are quieter, and unbelievably heavy.
I had bought one of the 3600 Vita Mixes when everyone was getting interested in them about a year ago. Very pretty and fun to use, as I had always loved seeing them at the fair and wanted one. I must have had a high mileage one as it gave up the ghost after a few months, so I took advantage of Vita Mix's trade in program and got a new Super 5000. Maybe a bit less pizazz but it's a wonderful and very powerful machine. I'll probably add another of the vintage stainless ones back into my collection eventually.