Little update to echo the experience minimus had: I called Oppo to get an estimated delivery date, told them my priority was audio, and they recommended the cheaper 980 also. They said the digital outs were identical, but the analog output of the 980 sounded better than the 981. I'm planning on using the digital out, but having the flexibility would be nice, and my TV wouldn't notice the difference anyway. My order was switched and I saved $60.
When it's time for me to get a blu-ray player, Oppo will be at the top of my list for their customer service alone.