I've heard the "low maintenance costs" point made often by Tesla themselves, but based on my research from their website it doesn't hold up. Tesla encourages you to buy their $600 a year service inspections[1], and their $1,000 a year extended service agreement. And God forbid anything breaks outside of the warranty, because you'll be in for some costly repairs[2].

[1] http://www.teslamotors.com/service

[2] http://insideevs.com/dont-wreck-your-tesla-model-s-because-r...