@bobrock for the Cary it really depends on whether or not you are comparing with a base model unit or a fully upgraded version. The newer/upgraded versions can vary with upgraded Munforf caps, Hexfreds, and all tubes replaced. Put the stock tubes in their original boxes for safe keeping. The amp transforms with all of the upgrades.
I sold my former SLI80-Signature and should have kept it for rotation. My local tech did the upgrade work, Cary bought the amp back from me at full price towards my current SLP-98 preamp, had it in there showroom playing, and called me to ask what all the upgrades were wanting to know how/why it sounded so good. They resold it fast.
The Jadis is nice too. The Cary has serious potential in the right hands of a really good tech or bought new with all of the worthy upgrades some do at purchase time. Recommend doing all of the upgrades at once, together. No need to incrementally wait. Best of luck.