BengKia discusses using wire-bound sketchbooks, Monologue notebooks and Moleskines:
The advantages of a stitched sketchbook over a spiral-ring sketchbook are a few. I have found that the spiral-ring binding is prone to being bent out of shape when stuffed in a bag and once the binding rings are deformed, it makes opening the pages difficult. Also, it is not a good idea to paste a lot of pictures inside them as the sketchbook expands and then for some reason, the pages do not feed through the rings properly. The stitched sketchbook, i have since found, does not suffer from these defects.
So I was sold on the stitched sketchbook, but I also had some Grandluxe Monologue A5 sketchbooks laying around and these were cheaper than the Moleskine and with heavier cream paper. But then I found that I really did not like the elastic band on the Monologue, which is a horizontal band, and much preferred the vertical band on Moleskines. Also, where the Monologue did not come with a pocket for stashing away reference pics, the Moleskine did.
Based on the above reasons, I decided to indulge my preferences, instead of being rational, practical and cost conscious. I like using the Moleskine and i do not like using the Monologue as much. So it was that simple, the decision was made and I have now become a convert to Moleskines. I am no longer as insecure about my work as I was when i first started drawing regularly some years ago, and I find that I am oddly fond of the Moleskine.