Hey, I love the Tesla and really want one, but $100K is $100K, and it ain't happenin' 'til the $100K is maybe $30K. That would be the "magic battery" at work.
And I do a lot of those long distance drives. I have a destination in Arizona that I frequent. I live in Virginia. I was there last month. It's about 2600 miles when you go down I-95 and hang a right at Jacksonville, then take I-10 the rest of the way. Its really weird to look at your Garmin GPS and the "next turn" is 1600 miles away at an exit onto Valencia in Tucson. But anyway, it took a leisurely 4 days to do that with about 2 - 3 fillups per day. They were about 5 minutes each. It would have taken probably an extra day to let the car sit there and charge 100% each time.
Quick recharge is the same mechanism at work as is hauling stuff. Lots of people have pickup trucks that get terrible mileage but that they drive to work and everywhere else because they sometimes have to haul stuff - boats, 4X8 sheets of plywood, etc. They don't have the money to buy 2 vehicles, something that gets great mileage but won't haul much more than a briefcase, and then something that will tow the boat. So, they buy something that will tow the boat, and drive it everywhere 'cuz its their only vehicle. I'd have to keep my Subaru WRX for the Arizona (and other places I go for the same reason as Arizona, and they're all over the US - its 3 years old, has 116,000 miles on it) trip and just drive the Tesla when I could afford to wait for a charge - or if there was a supercharger available.
And I think we'd have to convert _all_ the transportation to electricity, including the 18 wheelers and the locomotives, because once cars and light trucks went away, the economy of scale of making gasoline and diesel would go away, they'd sell probably a small fraction of the amount they do now, so the price per gallon, to pay for all the hideously expensive activities associated with refining and transportation of it would force the price per gallon of the remaining gasoline and diesel to skyrocket. $20 / gallon? Maybe. Then you need to electrify jet air travel (how? I don't think there's a solution for that), boats, trains, 18-wheelers, etc.
Oh, I think the electricity for transport from the grid is going to take a lot of buildout of the grid. I have a scenario that I calculated once and saved, see if I can find it:
I found it, but Slashdot won't let me copy it in here - it says "filter error - please use fewer "junk" characters. Dunno what they're talking about, unless it is the carets I was using for powers of 10 that I was representing. Anyway, it'd take about 2.8 trillion dollars to build 164,000 wind turbines to power all of transportation that, or about $507 billion to do that in nuclear plants in order to provide electric with no pollution. Nukes and wind give us zero pollution. Didn't try solar since it only produces on some of the days and only in daylight. Really expensive, and that didn't even try to estimate building out the grid for electrics. If you're a photographer and attempt to photograph virtually any landscape, even in the near-wilderness, there's going to be a power wire running thru your picture. I contended with this while shooting the Apache Trail just east of Phoenix last month. Wires everywhere, but it'd get markedly worse to make transportation go on electricity. I'm still for doing that, but there will be costs in both dollars and esthetics.