OK, I stand corrected. I think most people order by credit card, in which case this isn't an issue.For me at least, the big deal is that in preordering one from MacMall, they did a preauthorization charge of nearly $800 on my bank account. This is the kind that drops off in like 4-5 days, but even if I cancel I won't have access to that money until the charge drops. I can't just turn around and order a second iPad Pro because I don't just have an extra $1600 in my bank account I can let be temporarily held.
Barring special circumstances, like yours, my statement is still true for the majority of customers.