We've had our Leaf nearly a year now, and we have done a lot of long-distance driving with it (up to 240 miles in a day). Since we have a extensive fast charger network here, this works well in the summer half of the year. However winter is different as not only the range drops a lot, but the charge times increase a lot too. This leads to the trips taking too much time.
So I have ordered a Model S P85 to do the long distance driving instead. I wouldn't call myself a defector
though, as we will keep the Leaf as our second car. The VW TDI is the one ending up being sold, as I hate driving it now that I'm used to driving electric
I could never go back.
I agree that the Leaf needs a larger battery though. Around 32kWh would have made life much easier for us for sure, and I'd happily have paid $8k extra for the extra 8kWh. Or make a 40kWh version and a cheaper 20kWh version for those who doesn't need so much lange.
I'd also pay more for an even larger battery in the Model S if they would offer it before my number is up. Using the 3400mAh cells would up the capacity from 85kWh to 93kWh