As someone who had a nice toasty behind on the early morning commute I for one am glad I went with the heated seats
I may be a bit weird though as I prefer the feel of the cold leather steering wheel.
The only options I was unsure of adding or not and in the end didn't were the Internet and Speed Limit display. Both of which were completely pointless luxuries and I can honestly say I'm glad I left them off as I can't imagine I'd have had any use out of either of them.
I'm more than happy with the car I have and wouldn't have changed anything. Mind you that may be because I hit the options list pretty hard to begin with