OK, so are this the special features of the Kronos?:
1. Kronos is a very compact live instrument
2. KARMA
3. Kronos has aliasing free and very good sounds
4. Kronos has nice effects and good routing possibilities
And that's it, right?
1a.)
You are right, that's an advantage
2a.)
Look at plugins like SugarBytes "Thesys" or "Consequence" and if you have a good developed piano roll like in FL Studio for example, you won't need KARMA anymore
but you are right KARMA is a nice special feature
3a.)
yes many plugins have aliasing effects / artifacts on higher notes. But there are many other plugins, too on the market which don't have
but you are right, Korg Synths have a great sound and the Kronos sounds very good - I like that, too!
4a.)
That's not an advantage, you can do things like this with every DAW and there you can use and route as many effects as and how you like. And there you can use effects like Waves or Flux ..., too!
summary for me:
The Kronos is a nice Live Keyboard with very good sounds an a nice comp called KARMA and you have a "little" sequencer to save some ideas - The End!
BUT:
The Kronos is not a production tool and not a pc alternative! You still have to arrange and produce with your PC / Mac and eventually you can use a wobbly Kronos Plugin for this!
But that is what Korg asserts! And to convince the musicians, they integrate some semi-finished features, too and for that you have to pay, too! And that is what they do since many years and with many workstations they developed! And yes, other manufacturer do the same and with every new version, they look to the competition ... and bit by bit you get some more little features ... you know what I mean ... but that's the reason that users like me and many other musicians I know, don't buy new workstations! The steps are all too small! And good sounds are not only available at a Korg Workstation!
That not always has something to do with the money but rather with the time you have to spend to find out which features are still not available! And you can't be sure that a new workstation has new features, too in all areas - look at the Kronos sequencer!
I think it's time for a workstation which is complete! But the Kronos isn't!
Give this workstation a
professional sequencer and the possibility to connect a 22", 24" ... external Display and I would think about buying a little bit more

Sorry my english is not very good, so sometimes I have to edit my posts to delete mistakes!
My current equipment:
Korg Radias - Korg Trinity - Korg EMX - Access Virus B - Yamaha RS7000 - Roland JD990
Core i7 860 - DDR3 8 GB - RME HDSPe AIO - FL Studio 9/10 - Sonar 8 - Melodyne Studio 3 - Omnisphere - Trilan - Stylus RMX - East West PLAY - Sylenth - Vanguard - Synplant - µTonic - z3ta - Surge - Thesys - Flux Recording Pack ...
What I also used but meanwhile sold or only tested:
Kronos 88 (only tested) - Korg N364 - Korg Trinity V3 - AccessVirusA - Kawai K5000S - MC 505 - YomoXBase09 - Cubase 3/4 - Ableton8 - Reaper - Albino 3 - Predator - Rapture - Alchemy