...These aren't desktops/laptops. Stores couldn't sell these phones near as easily if they were all identical, with a different shell and some differing specs.
last time I checked, that is EXACTLY what OEMS do with laptops. Stores DO sell laptops with different shiny colors and metals with the SAME OS (windows 7). Someone else pointed this out already - i'm not sure how you can argue against this.
last time I checked, this is BASICALLY what OEMS do with TVs too. Stores sell TONS of TVs and besides a few features (built-in Netflix, etc) the TV's provide the same function with different bezels, colors, sizes. There is nothing magical about the underlying operating system for these TVs for the average consumer - it's about the LOOK of the TV and for the smart consumer it is about the quality of the underlying hardware.
As to the iPhone being able to maintain it's "vanilla" status... well it's still the iPhone. The carriers want it, people want it...
last time I checked, that is EXACTLY what Apple does - don't use the excuse "because it is an iPhone" - that's a cop-out and has no supporting facts to say why it just "works" for Apple.
...These devices that live/breathe/sleep with us need to have features/looks/"bling" that differentiate them from others.
for many, computers also have a "close relationship" with the consumer...Allowing the consumer to put "bling" on a phone or a computer or anything else should be left up to the consumer (unless you like apple products, as those are typically more reserved when it comes to aesthetics)
I just don't see how people are arguing FOR this stuff. If manufacturers want to add "bling" for the AVERAGE consumer they could easily do that with providing the consumer with different case colors (instead of just two, which seems to work just fine for the iPhone crowd). BUT if they want to really separate themselves from the rest of the pack there are only a few places to really do it and that is with A) The quality of the Screen, B) Battery life, C) Hardware feature sets (cameras!!!,bluetooth,nfc,storage,etc) D) Current OS/updates.
The rest of their [OEMS] arguments are simply baseless. If we, as a small sample on this site, despise the performance of these UIs - you KNOW the average consumer hates it too. If we can find some tweaks to make them better (reduce animations, live wallpapers, etc) imagine the average user who doesn't realize to do this and their frustration when it takes 2 seconds for the screen to stagger to the left as you swipe - pure crap.
The bootloaders aren't even in this discussion, as far as I am concerned. That's way beyond even mentioning the average consumer when discussing such things.
The bottom line is this: The OEMs realize that the CHEAPEST way to entice the average consumer is by eye-candy and after 14 days you are screwed (no returns) and stuck with that phone for 2 years. Game-set-match OEMS.