For good stereo the older pre/pro will certainly win. I have seen older 861s go for much less than new, but you could do a 565 or 568 for about $400-800. In stereo the processor is not being used, so the pre-amp stage means everything.
Good Processor
I know this has been discussed before and have read most of the posts. However, I haven't seen one that addressed this question. For good stereo what is a better option? Going with an older high end pro like a meridian 861 version 2.8/4 or Halcro 100 OR buying a newer unit such as the Integra 80.2/3. If I purchased the Integra it would be easy to setup with little in cables given the HD audio formats. With the older units I would be processing HT in my Oppo and using the 5.1 output into the processor.