112 isn't crazy for a specialized catalog in many other hobbies.
https://www.amosadvantage.com/produc...mps-and-covers
104.99 on sale from 135.
The digital version is almost 75.
https://www.safepub.com/stamp-collec...chel-catalogs/
Note, the ones in English were published in 2016 and are still 160.... The US/monolingual tax...
On the other hand, a catalog I paid 100 for years ago went digital, free updates by email. Then was put on google for free.
Any catalog publishing is changing a lot. One of the clubs I'm in has digitized a lot of classic reference books and they're available free online for members. Cheap for only $15 a year, as many of the originals sell for over 100 each.
Now the point about making more then 10 is totally valid. But 10 may be enough to prove interest for either print on demand, or a much larger press run.
Most very specialized catalogs are done in runs of 500, maybe 1000 if the topic is popular, and never actaually make money.