I originally ordered a 40 when I put down my deposit in November, but when they discontinued theactual 40 for the sofware limited 60, I did upgrade. Mostly because it would be $1500 cheaper to upgrade now rather than doing it anytime after delivery, so I guess they got me. But what I figured was since I was getting such a low interest loan (1.25% over 5 years) it would be better to pay this extra $12k over time rather than upgrading later (which I would probably do eventually, once the superchargers were more prevalent). I have been very happy with the range of the 60, and though I only got to use a supercharger twice it is nice having the flexibility for long distance travel