You may want a specific type of offspring. Or you may not be able to reproduce sexually. You can buy the genetic information that the person named Cindy Crawford is based on. But the baby thus born will not look, act, or sound like Cindy Crawford, even in adulthood. That's because it is not possible for you to raise your child in exactly the same time and environment as Cindy Crawford was raised in.
Genetic information is a bit like sheet music.
You can have Zubin Mehta conduct a symphony orchestra and the tune will sound a certain way. At another time, with a different conductor and different instruments, the same music will sound different, despite being essentially the same. Cloning extends your lifespan by exactly zero. In any case, whatever happens to the clone will not affect you. You yourself will die, sooner or later, unless someone develops drugs to halt the aging process.