This is the crux of the problem with all of Apple's competitors, in the PC business and in mobile. Why choose when you can have everything? Apple's lineup is consistently decreasing the trade-offs between models, which reduces the number of reasons that exist for buyer's remorse.
Yes, us geeks may want the ability to choose between WiFi chipsets, but asking my mom to choose a WiFi chipset will just scare her away. She might want to make the best decision but she doesn't have the time to research it (or doesn't know where to look), so she closes her browser and decides not to by a Dell today. Tomorrow, she's at the mall and stops by the Apple Store, sees that the only decisions she has to make are pretty clear cut (as in, amounts of storage/RAM) and goes home with a new MacBook. She was never given the ability to make the wrong decision and any barriers keeping her from buying a computer disappeared.