I remember reading about the first cloned mammal. It was a very difficult, expensive, and time-consuming process. Any practical use was far in the future.
But cloning mammals is now practical and economical. South Korea is now using a litter of cloned dogs to sniff for contraband. The project cost $40,000 per dog, although it is not clear if that included training costs. Even if it didn't, that is still a bargain, given that only a third of naturally born dogs work out, and it costs a lot to train the failures.
Expect more cloned dogs, especially for tasks that involve a long and expensive training process. They'll take whichever dog was easiest to train and worked the best, and clone it for an easier and more predictable training process.