I have also graduated to the $2k range of cartridges and they do sound a lot better. I have read reviews saying anything above that and your paying for a certain type of sound rather than something that simply opens up to all ranges of sound without bias. If that is possible.
I think whenever audiophiles get a new piece of equipment (like a cartridge), we listen to that more for a while and then settle down to listening to music and enjoying it. Congrats on your system.

