I own both of these players and I can tell you the Ayre is much better at Redbook, SACD and DVD Audio than the Oppo. The Oppo is a great multi channel as well as BluRay video. I have and suggest you keep both. Each offers features the other doesn’t, unless you don’t need the multi channel or video performance of the Oppo. As far as the USB playback, I am sure you can find other options for that task.
I want to dump my Oppo; but...
I'm getting an Ayre C-5xeMP and I'd like it to replace My Oppo BDP-105, assuming it performs better once I get to comparing. The problem is I've built up a sizable library on USB drives and the Ayre has no digital inputs. An outboard DAC would do for the music; but how would I navigate through the 100+ folders and their files? I don't have or want a smart phone and keeping a laptop on my knees would be a real buzzkill. Right now I use the 105 just for stereo audio and it's plugged into an old LCD monitor for navigation and set-up.