What is a Limited Edition?

My designs are made by me in limited editions. That means I only make a predetermined number and no more. I sign each piece and number it. My large editions are of 150. Others have only 36 and some designs are one-of-a-kind. The smaller the edition, the more a sculpture costs because design time is a significant factor in the creation of each piece. I limit the edition to maintain the value for collectors but also to allow for variety. I have many, many design ideas and only so many hours and I need a change.