Maybe *everyone* would be happier if Tesla didn't reel the Model 3 launch date in by what, ~1.5-2 years? Then we could all order everything we want in a big "TA-DA" moment in 2019!
What's your point? How is it related to heated steering wheel?
Heated steering wheel is no rocket science, nor is it expensive to implement or manufacture. It is simply a board room decision whether it is offered or not. So in no way would such feature cause any delay in Model 3 launch.
Glass half-full: Tesla is way ahead of the original schedule that I bought into when I reserved, so the current situation seems both reasonable and logical. I'm happy.
Glass half-empty: What I want isn't available in this first wave, so I'm going to cancel. I'm sad.
This is not a glass half full or empty difference. It would only apply to something which are not a "must-have", just a nice "bonus" if available. For example, if Tesla announced that they would cancel plans for AWD/dual motor version, I would definitely cancel my order.
The problem is that now that it is not available at launch, and there is no mention of a feature "to be available later" (like the full autonomous driving), it means uncertainty of whether it will be available in a year or two or at all. I am not going to cancel now, I am willing to wait till "late 2018" when the AWD (another must have for me) version is available, and I'd keep my finger crossed that they would add the heated steering wheel feature by then.