The Amiga was ahead of its time. Amiga people tended to migrate toward Linux, trading superiority of hardware for superiority of philosophy. I personally don't miss the proprietary days.

Consider the Mac is popular now when it's using the same hardware as PCs (Intel, NVidia/ATI) and runs on UNIX. Essentially Apple is based around a highly polished FreeBSD distro!

With some more resources, Ubuntu could do the same thing, selling tightly integrated machines where everything "just works".