That would work if Tesla had dealerships in the traditional sense when they can dump 1,000 vehicles somepalce and let them worry about selling them. Tesla doesn't really have inventory they build up (some cars that were canceled of course but it's usually build to order).I think Tesla has some responsibility by not making things predictable. Any other make you know well in advance when the new model year is coming, whether that model year change has any notable feature changes, and whether there will be a price increase with the new model year. Often there’ll be incentives on end of model year cars to keep the inventory moving too.
I'm sure it makes things easier for Tesla to simply roll out a feature when its ready insread of waiting.