When The iPhone 7 series was launched
There were Two Different Sizes 7 & 7+
By Three Different Memory Configurations 32, 128, 256
By Five Different Colors Jet Black, Black, Silver, Gold, Rose Gold ( technically there was a red but introduced much later)
By Two different Carrier band models GSM, CDMA
Size(2) x Memory (3) x Color (5) x Band (2) = OR Sixty Different Pre Order Combinations
And You Wonder why there wasn't enough of certain Popular Combinations to go around ?
There were Two Different Sizes 8 & 8+
By Two Different Memory Configurations 64, 256
By Three Different Colors Space Gray, Silver, Gold
By Two different Carrier band models GSM, CDMA
Size(2) x Memory (2) x Color (3) x Band (2) = OR Twenty Four Different Pre Order Combinations
And yes I know there are special no sim, no GPS, country specific models, blah blah blah
But the basic premise is fewer combinations X more production capacity = less wait time
Extending the X Out until October gives them a month more to ramp up
For The X There is ONE Size
By Two Different Memory Configurations 64, 256
By Two Different Colors Space Gray, Silver
By Two different Carrier band models GSM, CDMA
Size(1) x Memory (2) x Color (2) x Band (2) = OR 8 Different Combinations.....
If they do sell out it will be all demand.