I stopped reading fiction decades ago, like in the 1980's...waste of time for me.
My reading urges pretty much stopped with transition (except for trans-process related material), but when I had the urge it was almost entirely what might be called "historical" books...books written in the 1920's, or pre-1960, detailing daily life in the US and certain other countries (Germany in particular, pre-WW1 and 2).
The big stores simply had nothing for me. I'd wander in, peruse the selection, maybe buy a picture book "US Army 1950-1990"...drool over the leather bound boxed set of Tolkien's LOTR (knowing full well I wouldn't likely read it again)...
So small, hole-in-the-wall stores were my choice...but their location "system" was horrible. Since I didn't know the names of any books, or their authors, I could only go to the front desk guy and ask, "Hey, do you have any books on daily life in the US, before 1940?"
And he'd say, "Weeeelll...maybe. I don't really know. Why do you want a book like that? What kind of info are you looking to find?"

Jeez, dude, just show me where the books MIGHT be, and I'll look to see if any catches my fancy...
Enter Amazon...I can search for books using concepts, general ideas, and HEY PRESTO I get 5 pages of results...and, the best part is that each selection has "people who looked at or bought this book also looked at/bought this book"...
I've bought more books via the referrals than by my own searching. So, I really don't miss the bookstores.