The G4 "iLamp" was indeed a uniquely cool design. And to be fair, at the time the G4 CPU packed a wallop in Altivec (The "Velocity Engine" for those old enough to remember) aware applications . That said, in non altivec aware applications its performance was decidedly less impressive, its GPU was weak, and as cool as the design was, I don't see it working with the monstrous monitors we have today.I think you are probably right on the performance front, but I disagree on the design side. The G4 iMac was much further ahead relative to the market, and is far better than all the iMacs that followed regarding ergonomics. It was a joy design-wise.
I'd love to be proven wrong though.