Given the tone of your post, I'd get the 90D. I'm in the same boat and it's 90D or nothing for me. Yes, the vast majority of my trips will be under 50 miles a day. Many days under 30. But I'm certain once I get a Model S, I'll drive the car way more than I expected. And if you use evtripplanner.com, there is a marked difference in how many times you have to stop and for how long between the 90D and the 75D (there's no 75D selection on the site - I use the 85 with 21" wheels as a proxy). It can frequently mean an extra 1/3 added to your overall trip time or sometimes even a completely different and longer route. If I were traveling by myself it wouldn't matter, but most of my long trips are with family and friends driving ICE cars. Stopping for 45 minutes or so every two hours is not going to sit well with some of them.