I've had my model S for about 15 months now, a 75D that's worth about $60k-65k. I'm having a hard time justifying keeping it since it seems like the Model 3 does everything I need to, but for half of my sticker price. For me personally I don't need the extra room (I'm single), and I actually like the interior of the Model 3 a lot. My autopilot (HW1) is better but that will change within a year or so. I barely use bioweapon defense mode, I have no rear cupholders or door pockets. I'm a day 1 reservation holder for the Model 3 so I could get it by the end of the year. Having no key for my lifestyle would be a little inconvenient but we're talking a difference of $20k, a little inconvenience for that much money is not a big deal. I don't use supercharging that much, I've only taken 5 long trips since I've had my car where I actually needed them. My question is how many of you are keeping your model S instead of trading down and why?