They should have had people place orders so that they could know what combinations would be most popular. Then they could have canceled all those orders and ramped up production based on what they learned from the trial run.
Then they would have been able to meet demand, based on real data about what people would order if they were allowed to order whatever they wanted (before they were told that it was just a test to determine what people who didn't know they were being tested would do).![]()
They did exactly that. It was called going online and selecting which watches were your favorites. Apple read into all of those Hearts people gave to the watches they liked, to help gauge popular models.
Not everybody is as concerned about a prepreorder that amounts to basically market research as much as nerds on these forums do.