Levinson has lost their way, IMO, but if you look at the design of the Krell amps they go beyond what ATI did, even with the AT3000. I'm also not convinced they would sound any better in my system in my room than the AT3000, but having looked inside a Krell 402e I've got to say that the engineering is breathtaking. 4400VA of power transformer capacity, rated for 1.6K watts into 2 ohm loads, bias current high enough that it idles at 390 watts. Would it sound better than a 3002? I don't know, but the design is so cool I'd like to own one just to look at it sit there.
The 900e monoblocks take craziness to a whole new level. As with expensive wrist watches that don't tell time any better than a Seiko, sometimes you just get turned-on by an outrageous solution because its cool.