Haha, I can't say I'm surprised. Damn my newbness for not knowing a good deal. At least they are going to a good home.
As for the Oppo 105 vs the Marantz, I was just not in love with the idea of the Oppo being a machine that did "everything" and I didn't care for the look of it (very modern, very digital, very bleh). I felt like that was playing into my listening session as well, psychologically. It was definitely a brighter sound, no mistaking that. It was impressive at first, then I felt fatigue start to set in and kind of lost interest in the sound. The Marantz just sounded more musical and warm/fun to me.
From the few posts I have seen, the DAC is well-regarded. I noticed an immediate difference when I swapped out my Sony carousel.