Sorry, that was uncalled for. I've just started a regime, but there are plenty of pictures and accounts here on this website and on others of people who have had nice results. No, not David Schwimmer results, but noticeable, and 'cosmetically acceptable' real regrowth (i.e. improvement!) on folks who stick to a regime for a year.
I personally know someone at work who is a minoxidil user... has used it for 10 years and he looks fantastic. His temples are higher and thin, but all in all, he has a great head of hair and he started when he was 35. He says his temples were gone, and his hair from the center forehead all the way back to his 'vertex' area were thinning at 35. He was on his way to the dreaded horeshoe baldness pattern. He started minoxidil (all that was available back then) and a shampoo similar to Nizoral and he not only kept his vertex hair, and his center forehead hair, but it looks as thick to me as the hair on the sides of his head! And, he says the top corners of his temples filled in, not as thick as the top, but enough to make him look like a 'high temple' person and not a 'widow's peak' type look. He looks good, and maintains it with minoxidil, Nizoral, and now he uses spironolactone in the evenings. I patterned my regime on his, as my hairline is similar to his but my vertex is still thick.