Scott National Album And The 2 Cent "Broken Hat" Colombian (#231)

My Scott National Album doesn't have a space for stamp 231c, the 2 cent "Broken Hat" Columbian. It DOES have a space (on a separate page) for stamp 233a, the 4 cent Columbian stamp printed with blue ink, rather than ultramarine.
I don't plan on spending over $10,000 for stamp 233a anytime soon. So I am contemplating putting the 2 cent Broken Hat Columbian stamp on the separate error page instead. (I prefer to think of myself as "thrifty" rather than "cheap"!)
Here's my question: Does it seem odd to anyone else that Scott decided to have a page for the incredibly rare blue 4 cent Columbian, but not the more common (and affordable) 2 cent Broken Hat Columbian? I thought (perhaps mistakenly) that the Broken Hat stamp was a popular and collectible error.
Thanks!

Yes, the tyranny of the pre-printed album! I think there is also a space for C3a. You can collect any way you want. You might want to make a separate page for the broken hat as there are several variations as the transfer roll deteriorated. See Volume III of Lester Brookman.

If that's not on your book case, the U. S. Philatelic Classics Society offers free downloads of many books the society holds the copyright to. A great site, wotrth bookmarking. Here is the Electroic Library:

https://www.uspcs.org/resource-cent...nic-library/

Brookman Vol III is about 1/2 down, 2C Columbian is on pages 56-58.

Edit: spelling