"Kinda like Microsoft is an anti-brand to Apple fanboys. But both Apple and Gucci's customer base have a slice of customers that are on the edge and not necessarily fanboys."
These are two fundamentally different markets here. Computers (even Macs) are cheap enough that they aren't as stratified as fashion. A Mac might cost twice as much as a PC (though it really doesn't), but clothing can vary by entire orders of magnitude in price. If Gucci loses customers it will be to a rival premium brand or a midscale brand, not bottom-of-the-barrel Wal-Mart.
The auto industry is similarly stratified, and I understand it a little better than fashion, so let's discuss that. The strata (pre-GM/Chrysler meltdown) were about like this:
*
*
Aston Martin Maybach
Bentley Rolls-Royce
--------------------------
BMW Mercedes-Benz Lexus
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Audi
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Cadillac, Acura
-------------------------- | ------------------
Lincoln | VW, Honda, Toyota
-------------------------- | occupy all three
Mercury, Buick, Chrysler, | strata
upscale Ford/Chevrolet |
(Eddie Bauer Explorer, |
Corvette) |
-------------------------- |
Ford, Chevrolet |
*
*
These strata are probably wrong but they're illustrative. I
think Audi might be moving closer to the top tier, and I wasn't sure where Rolls Royce belonged but I made a decent guess.
No one says "I'm going to stop driving my Maybach and get a Ford Focus" unless they go bankrupt from buying too many luxury cars. Audi or even Acura could pick off Lexus/BMW/Mercedes drivers though. And someone who stretched too far and got an Audi might get a VW next time. But you're not going to have the lowest tier directly challenge the highest tier. In the PC market, Apple and Microsoft are already adjacent tiers, because there's no room in the market for any tiers above or below them. But the PC market is a lot flatter than other markets.