I finished my first casebound book on my own last week! The raw materials were just a $12 kit from the art store but it made a really nice finished object. Look at how book-like it is!
After I finished the kit, I immediately ordered a bunch of bookboard and a better glue brush and various printed text blocks from Hollanders. That makes this an Official Hobby, so I’d better start using a lot more notebooks. (I also got that book about making covered boxes, so I guess I can always turn the bookboard into desk sets.)