I just get sad when I hear about so many dogs just sitting at home, getting the shaft, while younger house-mates go out and do "stuff" all the time. I realize my perspective may be different because I only have two dogs, both older, but unless it was physically or mentally exhausting, I wouldn't retire my dogs completely. Semi-retirement, yes. Lower jumps, less runs, different classes, different organizations, etc.
Does your retired dog get extra special treatment and extra walks, or things enjoyable? I hope so. Otherwise, why get a young dog when the old dog gave you so much and you just "retire" it.
Buzz loves the couch, and his dog bed, and my bed. But he also LOVES going to training class, and showing. It's at an older-Buzz speed, but hey, I hope people treat me like that when I get old. I don't want to just sit on a couch all day. I want some entertainment and stimulation too.
/end rant, I think
Nope, not done yet. It's important to be objective, both ways, when considering retiring a dog.
Now, I'm done.