@Dammy
7million sounds about right, but we have to remember that the vast majority of users in europe bought one as a games machine.
My brother, for example, just got into mod trackers on the PC. When I told him they started out on the Amiga, he was very surprised, I don't think he ever touched his A500 keyboard.
While there where a lot less users in the USA, I think they were more serious.
As for the custom chipset being doomed to fail....well powerVR, 3DFX, Radeon, Nvidia etc, all started out as 'custom' chips for the PC before going mainstream. If it had been updated, and if it had continued selling millions, i'm sure developing a custom chipset would still have been worth it.
