I have both, but don't cope with either well. The former is too exacting; the latter, my sketchbooks themselves are secondary to the information within the covers, be they for weaving or just for fun, I can't edit the contents.
Among other things I did after my bookbinding workshop was to take the pages out of a hardcover diary/date/schedule book Ben discarded and covered the cover, and inserted coffee- and tea-stained drawing paper inside. I loved making it, but haven't managed to think up a series of contents to match the brown pages.
I keep all my diaries as supplementary tax records. In the past I've ceremoniously burned the inside pages after the obligatory 7 year retention period, and used the covers for posting/mailing fragile stuff; I haven't even bothered with that for some years.
I recently came up with this brilliant new idea, however! I'll cut out just some of the pages, leave some in, and cover the cover with papers or thin fabrics I like, paint/draw/doodle over some pages, and cut/paste things on others. There's not as much pressure on binding a straight, exact book, nor creating beautiful sketchbook contents, and I might even end up with some eye-candies free from my usual work mode/process-process.
Sounds like a plan?
(Never noticed, but in the years I had the fancier diaries, I was more imaginative! Chicken or the egg!)