I already have CS1x but I am getting attracted to AN1x. Should I swap my CS with AN instead. What are the things that I missed for not getting AN1x other than XG?

The AN1X is analogue modeling and CS-1X is just sample playback . The AN-1X has a step sequencer in it that funtions like an analogue sequencer and that can make for some very cool sequences. The nobbs can control the input of notes just like an analogue sequencer . But since they are both YAMAHA , they are reliable .