I don't boycott but I am fairly price sensitive.
Most newer fiction just isn't all that special to motivate me to spend over $10. Even NYT Bestsellers, most of these books will barely be a dim memory 5 years from now. They are one and put it away reads. They'll probably sell me 3 to 4 books a year in that range. Actually it isn't even the $13 new releases that disgust me all that much - it is the $9 books that are over a decade (or more) old that I find ridiculously priced.
I mostly buy at $5 to $7 range. Thousands and thousands of excellent books available at those prices and plenty of authors and publishers glad to get my money.