Ah . . . but wrong analysis is wrong. The Tesla uses old-school Lithium-cobalt batteries . . . common laptop batteries. The Tesla was created before good automotive Li-Ions were available. The newer Lithium Iron Phosphate and other battery chemistries last much longer. And better yet, they don't have the 'thermal runaway' (AKA exploding laptop battery) problem of the the old Lithium-cobalt batteries.
But your point is taken. I didn't expect the first generation EVs to even be close to comparison to gas cars in total ownership costs. It appears that they will be (at least with current subsidies) at least even.
But no absolute one can accurately make a comparison calculation. I've tried many times but you can't see in the future. The calculation depends on many changing things such as interest rates, gasoline prices, electricity prices, battery prices, comparative maintenance costs, etc. Depending on how things go, the Leaf may end up being cheaper, equal, or more expensive.