Agreed. Battery costs are coming down fairly rapidly now that volume is higher, too. Finally, development costs should be much lower; I was talking with a retired product planner and he was trying to come up with all the people who won't be needed for engineering now. Think about all the time and money spent optimizing the combustion chamber, between valves, heads, fuel injection and distribution, air paths, spark behavior, and so on. All gone.
The reason electric cars started out so expensive is because people wouldn't buy them until they had insane acceleration times... now instead of coming up from below, they'll trickle down from above.
I don't believe I've ever advocated rebates for electric cars, by the way. Just sayin’ for the record.