[1] http://www.teslamotors.com/roadster [2] http://www.teslamotors.com/models [3] http://www.teslamotors.com/modelx [4] http://green.autoblog.com/2013/08/07/tesla-sold-5150-models-...
Operating costs of these cars are meaningless to people who can afford them, so until there's a Tesla in the $20,000--$30,000 range I don't see that as something that's going to factor into a purchase decision for most people.
I personally would never spend more than $10,000 on a car, and I'd have to be having a really weak moment to even spend that. I still find Tesla to be interesting to read about, they are quite clearly the best effort yet at an electric vehicle, but for me they will likely always be just a curiosity, sort of like a Cray supercomputer. Amazing, but really special-purpose.
I also wouldn't write off operating costs as a reason — certainly, those who can afford them can likely afford the operating costs of similarly priced ICE cars, but my experience is those with a greater amount of money tend to be more frugal than those with slightly above average income. There's also the difference between wealth and income — purchase power for something like a car may well be done on the basis of wealth, while maintaining it done on income.
Good luck finding a home in the UK for the same price as a Tesla S.
Finding a house here in Sweden in that price range is easy, as long as you're willing to live where no one else wants to.
http://www.zoopla.co.uk/for-sale/houses/liverpool-city-centr...
If you buy second-hand you can also easily pick up an Aston for cheaper than a new Tesla S, so say the classifieds. I wouldn't recommend leaving it unattended outside your £40k Liverpool house though. Probably best not to drive it into the estate at all.
Couldn't care less. Couldn't.
Homes in London? Not even close.
Now, when Tesla starts slogging it out in the 30 to 40k range write me, until then they are just skimming off the crowd that with excess money who expect the same in their cars.
Hats off to their accomplishment, but maintaining quality and luxury at that price range is baked into the price.