Ah, but the price does not have to be all that competitive. If you drive 1200 miles a month, you are paying between $150-$180 a month in fuel costs, depending on where you live. That cost is going to continue to go up as gas prices inevitably go up.
By comparison the electricity costs to "fuel" your Focus EV in a lot of areas of the country would be $30-$40 a month. So you are saving about $1000 or more a month on "fuel costs" which, if you keep the vehicle for 7-10 years should offset the increased price very very easily (a recent study showed the break-even on electrics in most areas to happen in as little as 4 years).
Add to that oil changes, etc, and it's not hard to see that they can charge $7500 more for an EV and get away with it... at least as long as there is sufficient demand and high gas prices.