Why finish a book when you can stop part way in a fury of excitement and tell everyone else to read it and then lose interest and never finish it yourself?

I've got a book here in front of me. It's really good. I am on chapter four. This is the part in a book where I am really excited about it and I want to tell everyone to read it and I'm really close to not picking it up for a while or ever again. I'm not really sure why it happens, but not finishing a book seems to be my spiritual gift. I really can't tell you how many books I've recommended that I've only read half of. I'm determined to finish this one because I told my whole congregation they should read it for Lent.