Pay no attention to thankyouOB. If you lease you won't have to worry about it.
There are important differences between the SV and SL on one hand vs. the S on the other. Be sure you research them if you are considering a S. Find all the facts here: 2013 Nissan LEAF Press Kit
. Click Specs at the top. (The 2014 will be very similar to the 2013.)
I was particularly reminded of this by the otherwise excellent cgaydos post above. Cancel timer cannot be used in the S model to switch between 80% and 100%, because the timer is very rudimentary. There are quite a number of other features missing from the S model.
Personally, I wished that I had insisted on seeing the S model backup camera in use before I got it. I might have gone for the feature anyway, because the QC port and 6kW charger are valuable, but I find the camera display almost useless, unlike the excellent display in the 2011-2012.