@Blackhawkfan - You need to understand that Mark Stansbury and I are of the same persuasion: We are very deliberately making our best efforts to DE-monetize the used catalog market by getting everything uploaded and posted at
International Tool Catalog Library, where anybody with an internet connection can download them for free.
We work with limited budgets out of our own pockets.
Recouping the investment will pose challenges, because why would somebody want to PAY for the old stinky dog-eared hard copy when they can download it in *.pdf format for free?
(Of course, alternatively, one can argue there's nothing quite like the smell of musty old catalog pages that came out of old parts stores.)
YMMV
My hope is to be able to provide ALL of the material I have amassed in one neat little package, but I don't know if they make "flash drive" units big enough to hold it all. Currently size of my "tools" folder is just over 84GB (which includes a boatload of *.pdf files.)
edit:
Just got off the phone with Green PC - 128GB flash drive $22, 256GB flash drive $35 - so apparently what I want to do IS possible.