FWIW: I drive a 2016 Nissan Leaf and had a 2013 for 2 years before, so I have a little bit of experience. My Nissan dealer is in no hurry to sell Leafs, has probably moved fewer than 40 since December of 2010, when the car was introduced. Other close-by dealers are no better. Here's an interesting take:
http://www.mynissanleaf.com/viewtopic.php?f=23&t=17133
Cliff Notes: the writer is a Nissan salesman, loves the car, but it's a huge pain for him to sell, and he makes little money on it.
Be sure to read the part about the online survey that you'll be urged to take after taking delivery. If you like your salesman at all, be sure to rate your Sales Experience as "Outstanding".
My lease expires in December of 2017, and at the moment, I'm expecting to move into a Bolt. I'm very happy with the Leaf, especially the 2016 with the 30 Kwhr battery, but more is always better.