The problem is not buying one, it's the monthly insurance that will kill you.
.... Once something fail on that car, you will pay through your ass for parts and repair.
Some of the early adopters can easily afford those cars, but I guess I'd rather invest it in startups with potential and increase it's value even more by diversifying into other areas.
If I had money to burn, I would go for the new Tesla.. Just because I can...
http://www.teslamotors.com/modelx