I had very similar concerns, and posted them in
this thread a few months back. It wound up being a great discussion and really helped to alleviate some of my concerns.
As a summary of that thread, my biggest concerns were:
1) Cost - even though I could afford it, nothing screams financial blunder quite like spending $100k on a depreciating asset
2) The pretentious factor - I live in an area of the country, in a small town, where if anybody so much as buys a
used Lexus...people start saying, "Wow, the Smith's sure are blowing money"
I rationalized the first concern with, it's not quite the same as spending $100k on a new Maserati or S-Class. With as much as I drive, the savings in gas offset the price by quite a bit. Is it still a wise financial move? Would I have been better off putting this money into the market, or buying real estate, etc? Of course. BUT, I also viewed this as more of an investment in my enjoyment and an experience. I'm not exactly an environmentalist (However, I am aware of my impact. Recycle, reuse, etc etc), but this car is crazy fun to drive.
The second concern so far hasn't materialized yet. I was worried what friends or family would think, and I haven't had any negative reactions yet (aside from a brother and sister in law...who have questionable intellect in the first place with all things money). I work in a few towns where my car's MSRP is higher than probably 50% of the home values. However, the car is sexy looking enough...but not TOO much that it attracts a ton of attention. Like others have said, as long as you don't go crazy with the color or put flashy wheels on it...you'll blend in. People that know cars will notice it. They will know that they don't recongize it, and you'll see them strain their necks as you drive by with a confused look on their face. Every now and then, you'll see one react as soon as they realize its a Tesla and quickly punch the other person in the car in the shoulder and point to your car (that's always fun). I'm always taking an informal poll of how many people notice and how many don't. I'd say a good 75% don't notice it. Now, if I was driving around in the BMW i8, 99% would notice it and I would very uncomfortable hopping how to go to my post office box. In the Tesla, I feel just as comfortable as I did hopping out of my Tahoe.
You've already made your decision, as I did just a very few posts into my thread. You will NOT regret it. Welcome to the family.