I Ordered a S85 a few days ago. I work in sales and have to keep a milage log. So I have accurate driving records over the past 5 years. I know that a 60Kwhr would work for me. I ordered the 85 for several reasons that many have reported here:
1) Better resale value.
2) I did want super charging and love Michelin tires.. (So for me it was $7,000 diff)
3) Better warrantee (Unlimited miles)
4) Better performance (Least important to me, but sill nice)
5) I live just outside of Atlanta, GA. There will not be any Supercharge Options for me for a couple of years, so the extra range allows for more trip options until they are installed.
6) I think a large pack will degrade less due to less deep charge cycles.
7) I plan to keep the car for at least 10 years. If it degrades to a 60Kwhr, I am still good, especially if the SC network is completed by then.
8) I am sure that the wife and I will take more road trips in the car than we have in the past.
9) I know myself and know it would have just bothered me too much if I got the 60.... Not rational, but there you go...
10) And Finally, after thinking about it for months. I realized that if I could not afford the 85Kwhr car, I really should not be buying the 60Kwhr car either...
This may well turn out to be the best or worst decision I have ever made, so you might as well do it right either way...