I have the Sunfire Ultimate Receiver. It's been a great unit, and I hate the idea of spending thousands to replace it with something of a lower quality.
But also I am a nerd. This runs my theater, but I have a two channel system with a McIntosh 7200 and LP12. One of my kids is running a refurbished Sansui 9090 and a systemdek TT and the other has a 70s Hitachi receiver (which could use some work) and a new TT. In storage I have a Sansui Eight and some other fun old stuff.
I love to talk to people about hifi and learn what other nerds have.