I test drove a Roadster a few years ago and had a blast, inspiring me to become a car blogger (link). I recently did a test drive of the Model S and wrote that up as well (link). I pose the purchase decision as a question: "if you were willing to buy an Audi A7, would you pay the extra cash to buy a Tesla?" My conclusion is that the purchase isn't financially rational. On the other hand, if you're already prepared to make irrationally expensive car purchases (e.g., a Maserati Quattroporte), then Tesla has the perfect car for you.

Give them a few years. If a three year old Model S goes for $50k rather than $80k, that will change things a lot. Likewise, if the forthcoming "Gen III" work out (allegedly priced and equipped to be in the same ballpark as a BMW 3-series), then that might start a real avalanche of Tesla sales.