If you are getting into BEV's primarily to save money overall, you are wasting time for another 3-5 years I would estimate.. The incentive exists to kick start people's interest. The oil based corporate enclave will not go down without fight, not until, they have something else to sell us .... other than electricity .... Think hydrogen or some other energy carrier you will have to go to pump into your vehicle. Not that I believe hydrogen makes a lot of sense in the current state of R&D and passenger vehicle market. Large vehicles etc. might be a different ball game.
Without incentives the change will be hard to kick start. It cannot be the only thing, the price of oil will have to move up as well, and a lot. I would expect the price to be very different at he end of this year. The Exxon's and oil speculators/investors are working hard at that. They've had enough of the 30$ per barrel dumping price, their patience is running out. They will most likely get help by some political cluster**** .... Not hard since there are quite a few of them brewing these days.
Also, Tesla 3 will be 35k USD in US and most likely some very base model, few people will be buying. Unless the dollar recovers or Tesla schedule slips (more likely) most people will be looking at 50 k price. Much better than their current offerings S and X, but hardly affordable car either. I am not sure Chevy Bolt will come much cheaper, perhaps even more as early numbers indicate. But right now, now nobody knows what base models will look like.
You can see how without incentives people will not be exactly rushing into dealerships to buy their electric vehicles. But I think they need to convince people only once .... Also more people buying more selection will come ... The market just needs to get off the ground.
I am not a tree hugger myself, but the change has to start at some point, right? There's no going back ...