And I heard the only good thing the cash for clunkers did was to get a bunch of the Obama bumper stickers off the road...
All kidding aside, yes we absolutely need to get inexpensive EVs out there. We also need to do some serious education regarding total cost of ownership. There are a number of EVs like the Leaf or Smart that after existing incentives are very competitive versus the purchase price of comparable gas compacts/subcompacts. But when you factor in the fuel and maintenance savings over the life of the car, the EV costs far less.
And you make an excellent point that some of these incentives could be available for used EVs. But you have to be careful about which ones.
Example: The 30% tax credit would be ripe for fraud. In year 1, me and my 4 siblings can each by an EV and get 30% refund. In year 2, we each sell the car to one of our siblings, thus the cars just rotate through the family. But we each get another 30% refund. Year 3 and so on and before you know it, we have our entire purchase price and then some for the 5 cars back.
The HOV lane stickers would be a good one to allow buyers of used EVs to do. This I think is crucial. People who can only afford low cost used cars also need to commute and save time so this can make these much more attractive. Also in Santa Monica EVs get free parking at meters, but only if they have the HOV stickers. So California is blocking some people from receiving the benefit Santa Monica intended to provide.
Also, in California's rebate, you have to keep the car registered for 3 years or you have to pay a portion back. So a version of California's rebate system could work okay for used cars.
But to be honest, I think education is really key. From what I've read on this forum, the depreciation has already resulted in off lease Leafs being huge bargains. If more people appreciated the value proposition, these would get snatched up and the price wouldn't be so low.