Why? 1. While the safety benefits of (the now really expensive) Enhanced Autopilot should be of value in the short term, it's unclear as to when Tesla will deploy the Level 5 full self-driving features that approach their aspirations. 2. It's entirely possible that the current hardware and upgrades will not be sufficient to do the job. You might need to buy a new Tesla with "Enhanced" Self-Driving Capability. 3. If Tesla IS able to provide compelling reasons to have the option, you're out a $1k penalty for the upgrade (unless they change this)... if you still even own the car. If not, you've saved $3K for functionality that you may never use. It's unknown where Tesla will draw the line between self-driving-like features that they enable on Enhanced Autopilot cars vs Self-Driving Enabled cars. For example, they could decide that auto park works with autopilot, but auto supercharge only works with the self-driving option. Time will tell.