For many people buying a book and putting it on a bookshelf is like buying a dream that they will one day have time to read it.
I would think if you had an on line bookstore and you wanted to augment and suppliment your inventory this could be an opportunity.
But to open up a store to exclusively sell old wactower books, would be like opening up a store that only sold scotch tape.
I thumbed through some of my mothers Wactower books from the 30, 40, 50's they didnt strike me as very good fiction.
How much time and money does one have to spend to prove to themselves that these people are full of shxt.
$500. and 5 years. Thats my guess.
And then when you figure out they were full of shxt, you still have to deal with your life and start to grow.