The cost to install a level 2 charger at home is nowhere near that IF you're savvy - chargers can be had for a few hundred bucks on Amazon and getting an electrician in (if you not handy, I did my own) to run the 220V wire to the garage is maybe $400-$500 for most 30-40A circuits.
There is, of course, no need to install a level 2 charger at all as you can use a level 1 instead, albeit slower. Practical for a Volt, not so much for a Bolt or Tesla, obviously.
Yes, if you just call the first guy you find on Google and tell him money is no object, or you want a top of the line charger, like all things, it's going to cost more, but $2000 is crazy.
As for cost per KM, right now we are driving around on the equivalent of around $0.15-$0.20/L gas. Even if the price of electricity tripled we'd still be winning, and I don't see the price of electricity tripling anytime soon.
The argument about the effects of massive uptake and public chargers is a fair one, but not *all* those public chargers are free - some are charged at break even prices, and some are profit centers for businesses and such supplying the power. When the inevitable mass updatake happens I expect to see more public charging stations shift to pay per use, with even a profit margin in there for the station owner, which is fair enough. Even when this happens EV owners still win as the typical cost is still <50% of the cost of gas, and it's win-win for the station owner as well as they're more or less running a little "gas station" in their parking lot and making some coin along the way for little or no effort. Right now this exact scenario exists, but the chargers are set to charge nothing instead as it attracts customers. The Oshawa Centre (mall) is a great example - they have a bank of "Flo" charging stations that CAN charge fees based on whatever they config them for, but instead they are free in order to attract EV owners, and their cash.
And ultimately, we come full circle to the reality that most EV owners charge at home, so your own driveway is your own personal "Gas station" - it doesn't get much more convenient, especially when the price on the pump is $0.20/L equivalent, no?
The argument about the grid not being able to hand it is false - look at the IESO website and see how much capacity goes unused during the overnight hours - there's an argument to be made that it could actually be a huge
BENEFIT to our energy system for that energy to be consumed and earning profit vs
paying other provinces and US states $6 billion dollars to take our overnight surpluses off our hands. Most EV owners charge at night at home because of the lower price of electricity, that $6B could actually end up in OPG's coffers (meaning indirectly less out of your own pockets down the road) - daytime charging is left to essential charging only, or typically, public stations where it doesn't matter, and the resulting load is very small compared to incentivized overnight charging at home.