Probably, the biggest is that Tesla HAS been thinking about recycling. In fact, GF is build just for that. Likewise, they will be re-using a number of the cells from a 'spent' pack to run their GF, prior to recycling (which is cool).
How much does the battery cost to replace?
Unknown since it is not known how soon one needs to replace it. With the first round of the batteries in the MS (i.e. 2012 version), it appears that somewhere around 200-250K miles, is when the battery pack will be around 85% level. So most ppl think that it new packs will be needed around 2020-2022. At that point, it might costs 5K for a change.
Of course, with 200-250K miles on an ICE car, you will most likely have to rebuild the engine, along with all of that nasty maintenance.
For example, the average person has approximately 1 testicle.
Whenever people trot out the tired statistic that 70% (or whatever) of drivers believe they're better than the average driver, to mock the idea of how well people rate their own abilities, I trot out the statistic that 99.9% of humans have more than the average number of eyes. We assume gassian distributions with no idea if that's actually representative of the results.
With that said, at least the air force example is a case of misunderstanding of how averages concatenate, which is a slightly more complicated poor understanding of statistics. (It doesn't take long to calculate 0.3^10 and realize that it's an extremely small number, but that's not intuitive if you haven't taken statistics classes, or, in my case, lots of chemistry classes: when you have a complex synthesis that has seven steps, each with 80% yield, you realize you're going to need kilograms of starting material to even measure your final product.)
"Your stupidity, Allen, is simply not up to par." -- Dave Mack (mack@inco.UUCP) "Yours is." -- Allen Gwinn (email@example.com), in alt.flame