Nice set up, I have the THOR Cantantus phono preamp.
That said, I was at my friendly neighborhood hi-fi shop, since moved and then closed, sigh, and they had a Diana Krall CD playing on a so-so mid fi entry level set up. The CD player was SACD capable. Knowing me, they popped the SACD version of the same album on in SACD and asked me what I thought. That did it, bought a Marantz SACD machine and haven't looked back. Would do the same today but likely something different.
Do yourself a favor, take a few of the SACD's you have, go to your local store and see what they sound like in a far less resolving system for both CD and SACD and then decide.
If you can borrow one for a few days, even better. Your ears alone will tell you if its worth it.