Re: They'll get there eventually
A friend of mine is retired from a senior QA position at one of the big manufacturers. He obviously had his choice of virtually any car they produced. His rule was to wait till a model had been in production for 18 months from the start of volume production.
In the case of the Model 3 that looks like being around 2020. Perhaps the people at the end of the waiting list will actually be the beneficiaries of lessons learned.