I'll tell you why I canceled mine. I reserved my Model S in 2009. I had never agreed to tie up money for that long for anything before (and I didn't even realize it would be 3 years instead of the 1.5 I expected). One of the things that kept me going while waiting the three years was knowing my reservation sequence number. I knew that whenever normal production models started coming off the line, mine would be the 140th one. It's silly, really, that this was so important to me, but it was. It's one of those psychological things. I suppose if I didn't have a very early sequence number, it would have had the opposite effect. I've called several people at Tesla and asked my local people here, and they don't think we will get sequence numbers for a very long time. I just don't like tying up even a much smaller amount of money without something to follow. My number could be anywhere up to 100,000, for all I know. For the Model S, Tesla played some games with sequence numbers as it was (I got my car before some Signatures). Without an actual sequence number to see, there isn't even be a way for us geeks here to even notice these games (if they don't *ever* give sequence numbers, which I think is a possibility). There's hardly any question that I'll buy the car (for one or both of my kids). But I guess I'll be in the 2nd wave of owners, instead of the first. Again, I know it's a silly reason, but it is what it is. That's why I canceled my pre-order.