Since the 1980s there has been a growing billion dollar business producing porcelain collectible dolls. Avertised in Sunday newspapers and mailbox fliers, even Marie Osmond, an avid collector herself, is now promoting her own line of dolls on the Home Shopping Network and sales are soaring. With average price tags of $100 -- and $500 or more for a handcrafted or limited edition doll -- these dolls strike a chord in the hearts of middle-aged and...