I'm going to make crappy comparison now. Let's say that instead of books we were talking about music. You walk into a music store and find a room filled to the brim with CDs that anyone who wanted to sell a CD has created. in order to find a CD you do want, you have to listen to them all, at least a little. How much time do you spend listening to 30 second clips trying to find out if the person playing the song is actually any good?
Tough comparison.
With music, you have FM radio. I'm old enough (more than old enough, actually) to remember AOR FM radio which was really a good indicator for which albums to buy.
Top 40 radio. . . ugh. You'd go and buy the album only to find the one (or two) songs you really liked and then discover that the rest of the album pretty much stunk.
Then came digital and the internet and file-sharing and the ensuing conniption fit over people swapping songs. . .
iTunes was genius--buy the music you want, forget the rest.
But ask yourself this: Other than radio, how else do you arrive at a decision to pick/choose/explore a new music purchase?
Most people do so by recommendation from friends, peers, reviews, etc--with "reviews" often being the weakest. (How many times have we read "reviews" of movies where the critic said the movie blew chunks, but we went anyone and loved it so much we went out and bought the DVD?)
"Hey, check this out!" is heard often. My own (now adult) daughter's iTune library is almost a total referral of other songs and artists recommended by her friends
who knew her tastes, likes and dislikes in music.
Same thing in books. I get people telling me all the time that there's this book or that book I should read because I'd enjoy it. My fellow pilots are always on the lookout for books about other pilots and airplanes. My old cop buddies lookout for books about cops and the such. Etc, etc.
OUR buzz is from referrals more than anything else, and we're fortunate in that "trial" can be had now with the touch of a mouse via the internet (sampling Amazon books, Barnes & Noble, etc) or flipping through the pages at a bookstore.
There is also the loaning and borrowing of books, while we as authors don't get paid, we do get exposure and build a fan base.
My kid has all of the Stephanie Meyer books. She started off by borrowing the first one--then she just "had" to have all of them.
I have all of Tom Clancy's, Vince Flynn's and others. My first Clancy book,
The Hunt For Red October, was loaned to me.
I'll always contend that if you write GOOD STUFF and prepare it correctly, then market it correctly and thoroughly, you'll find your audience. Your success will then depend upon how well you manage and take care of your audience.
Take care of your audience (write good stuff) and your audience will take care of you (buy your books and recommend you to their friends).