My purchasing of the packages to some extent was similar to other purchase decisions I make on objects that I will someday resell. The Premium can't be added later but the AP can. If you don't have a commute on a congested 50+mph road or don't drive long trips on interstates then you probably wouldn't use AP much and if you wanted it later it's only $3k so that one is easy. I did have a tough time with whether to get the PUP because it's really $7k if you don't plan on getting the leather seats. In the end, I also added UHFS audio package too and spent a lot more than I originally planned. Check out youtube vids for Autopilot with searches like "Tesla autopilot", "Tesla autosteer", "Tesla auto pilot". Everyone LOVES it. Even my wife who thinks she WON'T like it saw a clip on the news last night about the auto lane change feature and I could see a sparkle in her eye about using it. She gets nervous when changing lanes.
The doors definitely seem to have some issues but the auto present features can be turned off. There's nothing wrong with saving money and not buying all the upgrades though. For me, I would probably still buy AP and NOT buy Ludicrous if the prices were switched! AP is going to be AWESOME!!!!