If you want to get really fancy though, you could easily spend that in pure production costs, which what some of these authors (and one book council) decided to do for our enjoyment. Check these out with many thanks to writer and producer Susan Reetz for bringing these to our attention! My top three favorites are:
Miss Peregrine's Home for Peculiar Children by Ransom Riggs
Blueberry Girl by Neil Gaiman
New Zealand Book Council promo (pardon the distracting political ad beforehand - just skip it if you can!)
While it's probably difficult to accurately measure the full return on investment for these trailers, I can verify through my own personal focus group (involving one person, that being me), I find them to be highly effective and inspiring. I do believe I will be purchasing copies of both of these books at my earliest convenience. And who knows, maybe a trip to New Zealand is in my future too!
Have you seen any interesting book promos or trailers online? If so, please do share.