This is false. The Prime is sold in all 50 states. It's not as widely available as the regular Prius however and most of the inventory is concentrated on the west and east coasts, but a quick search shows 6 new Primes for sale within 100 miles of Dallas.
https://www.autotrader.com/cars-for...&sortBy=relevance&numRecords=25&firstRecord=0
As for everyone wondering about the ability to consistently hit 5.8 seconds, to do that the car likely has to be making peak power. The electric motors alone will only make a % of the total system power and them running alone without the gas engine won't be enough to hit the 5.8 seconds. Even when in full EV mode, like other plug in hybrids (Volt, Clarity, etc) when you mash the throttle all the way the gas engine will come on and give you maximum system output.
Also, once the EV range is depleted, the car will run in hybrid mode which also allows for electric only driving, not for 10 miles at a time, but around 1 mile or so if you are easy on the gas, similar to how regular hybrids work. The battery will likely maintain a minimum level of charge which helps make sure that the acceleration won't be muted when in hybrid mode. The battery will be charged up in hybrid mode by the engine acting as a generator and moving excess power beyond what is needed to power the wheels to the battery or when regening while coasting or braking. Like any electric car, it's most efficient a lower speeds, so it probably will also have a mode to "save" the battery charge for later like in the Volt or Clarity. The point being you drive on electric until you hit the highway, then put it into regular gas hybrid mode which is more efficient at highway speeds, then when you get off and get back into city traffic you can re-enable the EV mode to your destination. This only really applies to people who will drive over the 39 miles of range per day. Also, the Prime will be better for people who live in hilly areas. One downside to a hybrid in a very hilly area is that the battery can become fully charged via regen quickly on a downhill segment and then because it can't be charged up anymore the gas engine will have to turn on to burn off the excess energy. With a plug in that has a much larger batter that allows it to absorb more regen and then subsequently use it on uphill sections.
Charging will be very easy. A level 2, aka a dryer 220V outlet, can charge around 5-7kw an hour. Assuming a 30kwh battery, your talking 4-6 hours to a full charge. And an electrician can install one next to your circuit breaker if it's in the garage for a couple hundred bucks.