Thinking of a Hair Transplant Just in Hairline, Does This Look Right?

Ok so I actually have quite a thick head of hair. No hint of a bald spot or problems anywhere except for the actual hairline. One side has receded ( not to mention more then the other side ) & a friend who has had transplants says since they take from the back & implant in the front that it should be easy. Also why don't more celebrities have this done? why do they wear wigs like John Travolta if it's fixable with a transplant? That's what makes me suspicious of having it done.