I believe the Amiga as a hardware platform died because its strength of the 80s became its weakness in the 90s. And here I am referring to its Custom Chips, ie sound and graphics. If you really look at the hardware list above you realize that the GPU was not really that good. HAM was unusable and hi-res interlace will make your eyes water after a few minutes unless you heavily tweak the palette - leaving you with a 256 line resolution which even for that time it was bad.
In my opinion Commodore should have taken the pains to implement a hardware abstraction layer in AOS - together with a classic emulator. This would have been painful, but it might have saved Amiga from the PC & Windows. Look at Apple MacOS X which is really a heavily modified version of BSD, together to the move from 68x0 to ppc and now to x86.
But alas Commodore died a slow and painful death :-(
