Chicken lady, the books ARE frustrating. I've been doing this so long I am throughly SICK of it for one thing. For another, although my Mom was a bookseller (and Dad a book collector, how they met), the internet completely destroyed our long-term plans re the books. It used to be that you could augment your income by selling books. I know of people who set up their porch as a bookstore and made a few $100 every now and then, for years. That model does not work now. Our other idea was that we'd sell the shop. That won't work now either. So, instead of income, it just became a drain and major pain.
But we had $1000s into it when I closed the store in 2005 and I'm really stubborn, so I kept trying this or that. But I've had it now.