In my personal opinion it is still a little weird that we are cloning animals. That said I am not against it though. I do disagree with scientists that say "we can save so many endangered species." Aren't we limiting the gene pool for these animals and possibly creating other problems?
Would I clone either of my dogs that have passed. YES! My siberian husky was murdered by a couple of kids because they were harasing our next door neigbors and she protected their yard as part of her territory. They fed her rat poison and she was only two years old. She would deserve to have another chance at life. My uncle/godfather gave her to me for my 8th birthday when she was 9 months old. I helped him whelp her. I just wish I had had more time with her.
The husky that my mother had bought for my father when they got married in 1978... He was a good dog but, knowing the kind of health problems he would eventually inherit I would not clone him. He had really bad arthritis by 3yo and eye and ear problems by 5yo.
All-in-all it depends. If you know the animal is going to inherit medical problems down the road one should reconsider the idea of cloning an animal they love. Do you want to see him/her go through that again? Can you go through it personally again? And as has been discussed a lot of personality depends on environment. Are you prepared to have a dog that looks exactly the same with a different personality? There is just so much to think about.
Trevor