Very true. That's why I mentioned orthos and hard to drive hp's. Some of the receivers like the sx-1280 have a -20db button that effectively filters the "hiss" from hp's like the hd650.
Part of the fun for me is the hunt. It can be addictive though. The sx-1280 sells on ebay for $800-$1300 depending on condition. I paid $450 plus got a nice set of large Advent speakers as part of the deal. Now that's some good fun!!