I like to make my own journals. I switched to having a monthly journal where I staple the pages together for the month instead of making one for the entire year. That helped keep the pages from falling out. The students keep their journals in their writing folders (a pocket folder) in their seat sacks. I collect them at the end of the month and give them a new journal.
One year I did order journals from Starfall and was pleasantly surprised both by the price and the quality. If you want to check it out, go to the website
http://www.starfall.com/ Click on the Starfall Store at the top of the screen. (You might have to solve a math problem to verify that you are an adult and not a child.) Click on the Practice Books tab. Scroll down. It is the My Starfall Writing Journal. The cost is $1.39 each, but if you order 20 or more, the cost drops to 94 cents each.
I've used the journals from Really Good Stuff before, but not the spiral ones. I found the Starfall journals to be sturdier than the RGS journals I had used previously. The Starfall Journal pages were thicker and the size of the journal was larger. I don't know how it would compare to the RGS spiral-bound journal.
I hope that I was able to help a little.