People continue to bald because genetic balding is a progressive process..If the donor hair is taken from a permanent area on the back of the head, the results should be longer...Maintenance of transplanted hairs is a must... .I recommend a combination of laser hair therapy, propecia, and Rogaine, PRP whichever you afford, to help solidify the transplanted hair follicles and aid in slowing the loss of hair from follicles that were not transplanted...Also maintain a high protein diet with all the vitamins and minerals....any type of stress is harmful for your hairgrowth....if you have quited smoking that a good lifestyle modification....thanks