But, as I said earlier, I had no idea the costs into publishing novella's on paper (even as a collected set) was so expensive.
It's not that it costs a lot to print them, it's just that it wouldn't be profitable because there's no print market for such short books anymore. Book buyers have become accustomed to getting tomes that are at least 300 pages long, and interest in shorter books has dried up. Also, bookstores prefer ordering books that have higher price points so that they can make more profit from them, and that's contributed to the pressure for longer books.
I'm going to throw out a wild and crazy idea.
The costs on POD have come down rather dramatically in the last decade. It might be a viable option for collectors or readers who absolutely have
to have a dead-tree format. They'd pay a premium, true; The Struggle Within
(to pull a recent example) might cost $9.99 or $12.99.
To bring this back to Star Trek
literature, this would be shades of Strangers from the Sky
. Everyone in the book is reading Strangers from the Sky
on their eBook readers, but Kirk, because he likes the feel of physical things, has a POD version of the book made.