One thing clicker training gives us is a new level of trust and communication. You may have noticed this with your pets. It's particularly startling and, to me, touching, with captive animals that could never be pets; it makes their entire care much more humane.
Writing a book is like having a baby. There is never a convenient time to do it. It's much more work than you remember from last time. And it usually takes longer than you thought it would.
Newcomers to operant training may place superstitious value on the specific tools they see others using, not realizing that it's the process, not the equipment, that counts.