I agree with DrReid. I think there are some intangibles that you need to factor in. I personally like the idea of not burning fuel.
Some thoughts...
- besides super chargers lots of places offer free charging
- if you install solar on your home, you might even be in a situation where that line item is 0
- I'm not questioning your data, but my understanding is that brake service is fairly rare on a Tesla, so you might have inflated numbers
- HOV lanes are nice
- If you charge at night and don't use super chargers, you actually save time over having to visit gas stations (time == money)
That said, with your spread sheet, factoring in just the notion that the Tesla is so darn cool, I think it is a no brainer.
For the record, I just ordered my model S, haven't had it delivered yet. Previous car was a Lexus that I drove for 12 years. Overall maintenance costs for the Lexus were higher than my estimates.