I'm ok with a more spartan interior as driving is just so much more enjoyable. The regenerative breaking takes some real getting used to, but once you've gotten used to it and you do 1 pedal highway driving (assuming you're not using auto-pilot) it is just so much less work. Most of the real fanciness in the Tesla is around making driving more enjoyable. I got the Model 3 AWD LR (not the performance model) and know I can out accelerate virtually ever other non-Tesla on the road. If someone wants to be a jerk and cut me off it is pretty much impossible unless they're in a super car (or another Tesla). Not being a gear head or car fanatic it just gives me more options when driving. That is worth a simpler interior. I was also fine with the crappy interior of my 2011 Ford Fiesta however, so we have different tastes.
The Porsche Taycan is the first electric car that seems to start to compete with a Tesla. The soon to be released Volkswagen ID.3 also looks like a pretty solid Model 3 competitor. The future holds a lot of options in this space, so you don't have to drive a Tesla to enjoy the all torque all the time driving of an electric drivetrain.