So, spiral bound notebooks. If the spiral is on top, then you can push the paper up and continue writing on the surface of the tablet. If the spiral is on the side, then your hand is off the tablet when you write on the last few lines of the page. The thicker the notebook, the more noticeable this is.
I like to write; I write mostly every day. I prefer top bound notebooks. I tried to buy one yesterday and the only one I could find was $6 for 70 pages, whereas a similar notebook that was side bound was $2. I used to be able to buy one brand that I liked, that had decent paper at a reasonable price. But, yesterday I could not find it. Apparently, it wasn't popular enough to keep it in stock.