I think back then, computing was at the beginning of it's journey and the new possibilities, with the imagination and skills of the original Commodore team made a great community project. Apart from the marketing side of things, the word caught on that the Amiga is a capable machine offering amazings spec at that time! 
Computing nowadays seems to be more homogenized, with a hotch-potch of basically the same features with a few variations and advancments now and then.
Your right. Back in the day the A1000 became the target of everyone, MS, Apple were gunning for the ingenuity that made it what it was.