It is a testament to the power of Middle-earth that pretty much everyone who gets attached to it can never let its importance in their life fade.

People who first watched the original movies or read the books as kids often take a fondness for all things Lord of the Rings all the way throughout their lives; heck, some people even theme their weddings around it and make sure that it is one of those important cultural products that they introduce to their own kids. There is a whole generation who are treasuring it from cradle to grave.