The question comes down to square footage in my opinion. I have one apple store in easy driving distance which was designed in the late 90s/early 2000s for the needs of late 90s/early 2000s apple. I don’t have the numbers on me, but i think I don’t need them to say far far more people are using apple products and services in my area today vs 2003.
No matter how cleverly they organize the store, there is simply not enough space.