I just canceled mine. Plain and simple too many service issues with the brand during the past year. Coupled with the decrease in supercharger rollout activity and excessive wait time. I am going to order a Bolt when it is available on the East Coast. Bolt is uglier but other than that seems on par with the 3 and it is much cheaper as I do not believe the 3 will be available for less than 45k before mid to late 2018
We all have to make the choices that fit best with our situations - hopefully yours works out for you. I can't say positively but I don't think you're right about only the expensive ones being produced first. Also, you may end up waiting longer for a Bolt on the East coast than a Model 3.