There are some other benefits beyond just extra range:
My weekly average km M-F is about 300km
If you have solar panels but car is at work during the day, the extra battery may just give you that extra range just enough so that you could charge vehicle just on weekends using the solar than having to use off peak electricity.
This also means a battery with more range requires a lower state of charge on Monday morning to accomodate the weekly km than a lower range battery having to travel the same distance. This means a possibly slightly longer battery life.
Using Sentry mode in a LR might not be as problematic with battery drain
For long distance travel, A longer range battery arriving at a charger at the same low state of charge as a shorter range battery does not need to charge to the same state of charge as a shorter range battery to get the same range out of the charge. Possibly this means less time at a commercial charger because the last few kW always take the longest???