Is there usually a dramatic difference between $5k and $10k cartridges ?

mulveling, this sounds almost like rocket science to me.

If they sound "worlds apart" then is it possible that none of them sounds right ? Or it is more like fine musical instruments that are different but both sound right ?

If they sound "worlds apart" then is it possible that none of them sounds right ? Or it is more like fine musical instruments that are different but both sound right ?

Yes, that is correct - cartridges are not a great pursuit for those seeking an "ultimate truth" (whatever that is). I prefer to think of them as performance artists :) 

That's a good approach, I think, because any other one will drive you crazy.

I am also on the hunt for a new, better cartridge, and I expect to pay 2x or 3x more than the cost of my current cart.  With that being said, I will only buy a cart that provides significant improvement. 

@carlsbad2 

When you state "It is only 1% improvement but it got you 33% of the remaining and it is a big deal to you.", I can agree that the logic (math) is correct, but I find the premise is wrong.  

When a system improves from 97% to 98% , in your example, it is assumed that the SQ improvement will be audible and valuable .  As many have noted in other strings, slight variations/improvements are hard to notice/remember even after a few days of listening.  I expect most AGs will not spend an extra $5K (double) for a 1% improvement.  

This is not meant to be argumentative, just objective.  There are always new-folks looking for reliable, realistic insight and advice...

Anyone ever buy demo/used cartridges? Thoughts? Experiences?