If you're not a writer it's hard to appreciate the time and effort that goes into the process. I know people complain about the price of books - especially paperbacks and hardbacks - but considering that some writers/authors can take up to 10 years to complete a book for publishing, they don't ask for much. And that time is a long haul; one that doesn't pay well unless thousands of copies are sold.
Most writers will be lucky to come out even with costs for editing, cover design and formatting, sometimes adding up to between $3,000 and $5,000 thousand dollars. When it is finally printed up - and sold - most get only two to four dollars per copy for their efforts. That's not a lot. So, as you can now understand, writing is more often than not done out of love ... as are most crafts.
Consider that latte or sushi you bought without hesitation for lunch the other day, then please consider doing the same when purchasing a book. You will make a writer very happy, moreso if you leave a review.
Enjoy your day, folks.