Upgrading Arcam CD73 to CD93?

Hey, thanks for the advice! I was hoping the upgrade to the CD93 would be $400 or less. I will keep shopping around. What can I get in a used CDP for under $1000 that significantly bests the CD73? I can't say that I like or don't like the Arcam sound-the CD73 is really the first entry-level CDP I have had in my system. I have been told that more expensive CDP's are worth the $, and also that models that are higher in price than the CD73 are minimally better and the $ could be better spent elsewhere. What do you think?

Thanks. I acutally used to have a DIVA A65+, but now am running a CODA Continuum Unison 3.1, which is an OUTSTANDING integrated for the money. It is very, very detailed, and rich sounding-no brightness or grain typically associated with SS. So, with my more resolving amplification, it may not be a bad idea to audition some more CDP's. Thanks!