You have to make that determination based on what you are looking for in your dog. As far as the classes are concerned, my experience has shown that once people quit going to the classes, they tend to slack off on the training of the dog. If you are happy with what Roxey has accomplished and you feel she is socialized enough, then now is enough.

Obedience classes (especially if you get into a good obedience club) are a place for dog lovers to get together and share in the love of working the dog. Once you master the beginning basics, you can advance to different levels. You can participate in obedience trials and get titles on your dog. There are other venues of participation too such as agility, flyball, tracking, field work, etc.... I personally find that working my dog in these kinds of events continues to develop a closer bond between us and keeps them very happy! Dixie actually gets bummed out when we don't go to class. It's as if she knows it is training night. Dusty likes to go so he can play with the other dogs before and after class. He reminds me of a big bouncy clown. He is such a happy boy and lights up around other dogs.

I wish there was a perfect answer to say at 1 year or 2 years you are done training. I train them until they can't go anymore. But you are talking to someone who loves training dogs and competing with them!! And one thing I have discovered is that no two dogs are the same. They all go at their own pace and either love going to classes or get stressed out over it.