Again - what gives you the impression there is going to be a surge of demand? You’ll be just fine ordering whatever you want. Trust me.
Because it's an iPhone launch?
Because shipment dates usually slip into October shortly after pre-ordering begins?
Because this year ALL iPhones are open for pre-ordering on day one... whereas last year there were two launches split between October and November?
Because there were so many people last year who said "meh, I'll wait for the next one" so they'll be primed for this year?
Because there are still tons of people who have iPhone 8, X and XS and are finally ready to upgrade?
Etc...
Look... I hope you're right about low demand. But more often than not there tends to be huge demand on launch day.
That's why people are saying to get in early if you want to be in the first round of shipments. But I guess we'll see.
Tomorrow the headlines will either be "Apple is Doomed... iPhone Experiences Low Demand" or they'll be "iPhone Shipments Slip Into November"
¯\_(ツ)_/¯