I am really interested to know why someone would pay $14000 for a Zero
After tax incentives the price comes down a few thousand dollars ($11,000) ... but the one amazing thing that can be said about electric vehicles is that they SAVE money. If you compare an $11,000 electric bike to an equivalent gas bike (say one that costs $8,000), ride both of them for five years, the cost of the gas bike just keeps going up with gas prices, maintenance (oil changes, tune-ups, etc.) Meanwhile the electric bike will start saving you money right away (no gas!) and will have saved more than the difference in price after five years (maybe sooner depending on how much you ride) - and will continue to save money until it breaks down or requires new batteries.
I paid just over $7,000 for my '07 Vectrix. I have over 11,000 miles on it (three years of riding). If you assume a similar gas-bike gets 50 MPG, and gas is $4/gal, then I have saved nearly $900 in gas. Meanwhile I've never needed a tune-up or oil change. Tune-ups can cost $400 or $500 each, oil changes cost $80 each (I also have a gas bike for the long rides, so I know).
would also be surprised if the 6 got you 25 miles at freeway speeds.
This sounds a bit low to me. My Vectrix had a 3.7 kWh battery pack (now upgraded to 6 kWh) - I could go 25 miles on the freeway (at the speed limit). With a 6kWh pack you should be able to go 45-50 miles... unless you are racing. The Zero is also much lighter than the Vectrix - which also improves range.