RV Fuel Issues & Prices - Post 'Em Here!

I was speaking of the electrical range you keep alluding to. That is what gets you the 500 mpg. The motorcycle engine in it should not be counted. Real EVs like the Nissan Leaf have no other mode of energy production. They don't have to buy the products of those dirty oil company and use up our precious, soon to be depleted natural resources.
Now answer the question, Why is nobody buying them?