I agree with absentminded.
I am taking it just to put in the effort and get out of it what I can. These won't be any money involved and, despite lots of lip-service about supporting anyone who wanted to take it and bringing in a trainer to help study, management here has completely forgotten that I plan to take it. If I ever plan to move on or up, I assume it will be something to fill my resume up but that is about all.
So much focus, in the commercial nuclear industry, anyway, is placed on education and training that they seem to forget that learning doesn't only, always, or often even best happen in a classroom setting. But classroom training and powerpoints are much easiest to point at when the NRC comes to audit your training program, so they persist as the main method of training.
I just try to study and pick up a little more each time I go through the study guides and books. Not just for memorization's sake but to try to apply things in the field, however small or nuanced.
I could remember bremhstralung and advise against shielding a high-energy beta source or remember the half-life of Co-60 and mention that the dose on the resin liner that we are thinking of shipping probably hasn't decreased an appreciable amount. This application ensures facts, trends, tendencies, and methods stick in the memory and many times that sort of 'intangible' thought or connection, that minutiae, is what makes a tech with practical ability and sense a little more complete.