In this day and age what spec will catch the eye of the user.
To their credit, this is one thing that Amiga Inc understood but ignored. The correct answer is "none".
People who buy machines these days (game, servers, or desktop) don't care what hardware it's running. They simply care that it works and does the exact job that they want it to with a minimum of fuss. Good examples of this include the XBox, PS2, Tivo, and others.
If Amiga Inc could have built a box that I could buy, bring home, plug in and have it "just work", they might have stood a chance. Instead, they went with a closed-end, outdated, and expensive PPC solution that got us nowhere, even FIVE YEARS LATER. (I tried to explain this in 2001 and was kicked out of their little club, but hey, at least several good people's lives got ruined in the meantime)
The future is the same as it always was. The classic platform.
Wayne