Humans are designed to survive in one type of environment on one specific planet. We were made to live on land, drink the water, breathe the air, and be shielded by the atmosphere from the planet Earth...and that is just the start. Now *eventually* our sun is going to burn out. We dont want to be on the planet in that time period because we will die...the entire planet. In order to get off this planet and be able to live elsewhere, we will have to make drastic changes to our genetics that evolution will not be able to change in time. We will have to adapt to living in space...living in other environments...breathing Co2 instead of O2. Cloning is the baby steps of what is to come in the future, albeit... not for awhile. Who knows, in a few trillion years...a human from one system might travel to another system and set down on a harsh planet, get into his habitat suit and set out to explore this strange new planet only to be approached by a short, green creature with dark eyes and a muscular frame. Upon a genetic scan, the traveller realizes that the creature is in fact a human that is engineered to suit the planet conditions (short and muscular due to the high gravity, dark eyes to shield from the 3 suns, green chlorophyll skin to convert the CO2 atmosphere into Energy and Oxygen for aerobic cell resparation). The (very rough) above example is hardly a drop in the bucket of what will be done. Another modification that will be made is life extension. Your ideal lifespan is nothing more than a genetic timer that says "your cells will divide 'X' number of times and then stop." All you have to do is increase the number of X and we will have humans that could live from 150years up to 500 000+ years...just change the amount of times that the cell divides. Wild Shit, huh ???? After wrapping your head around what IS going to happen....Cloning will seem like not such a big deal. And that is why we will clone....because more drastic and mind blowing genetic manipulation will happen.