It will be hard for new Tesla owners to understand that Tesla has programs to constantly improve their vehicles, while at the same time making them more efficiently.
They pass these savings along to new buyers and constantly upgrade, via OTA updates the entire existing fleet.
The want to convert the world over to cleaner electric transportation to make the world a cleaner and quieter place for everyone.
This is a good thing, however sometimes their product will get less expensive over time.
Hard not to be jealous when someone buying after you gets a cheaper price, or an improved mode, but that is often what owners may experience.