I would have liked to have more answers to my trailer question, but here's what I've learned so far.
"Caffey" says she finds trailers fun. She enjoys watching them and they have led to her becoming interested in checking out new books.
A reader on Twitter says: "No; in fact if they're silly, which they often are, I may be discouraged from even sampling the book let alone buying."
Historical Mystery author, Diane Stuckart, did one for her last release, PORTRAIT OF A LADY and plans to make another for her upcoming January release, but would also like to know what readers think. I found her trailer compelling with it's urgent music and beautiful Renaissance portraits, while the captions suggested an exciting historical plot with lots of twists and intrigue. I say well done, Diane!
My friend and critique partner, author Cynthia Thomason, says: "No, I haven't bought a book because of the trailer, but I've seen some really terrific ones. And now that I think about that, I find my answer odd. I've certainly gone to see movies because of the trailers."
If anyone else has an opinion they'd like to share, I'd love to hear it!