Lounging on the beach today watched a little plane fly overhead towing a banner advertising a beer. Wondered what the ROI could be for the cost of plane, pilot, sign-making, gas in # of bottles sold. Or is there some other value to advertising than making another buck?
Building brand awareness.
Of course, one must be careful there because it is not easy to measure ROI on "brand awareness" thus it's the low-hanging fruit for unscrupulous marketers to sell you something of dubious value because they can say you shouldn't look at sale figures (or, typically, the lack thereof) but think of it in terms of building "brand awareness."
Literal consumable consumables, like food and beverages, have the advantage in that, using your beer example, if you like a beer, you may buy another of that brand, if not now, then tomorrow or the weekend or whenever.
No matter how much you like my book, you're probably not going to buy it again and again because, well, you already have a copy. Maybe you'll buy one of my other books, but I cannot output books at the same level a brewery can output beer. If you drink a beer every Friday, that's 52 beers per year. Most of us don't have that many books.
So, yeah, the beer company can afford to spend money on a plane flying a banner because they might get (or keep) you as a lifetime customer. Unless you're going to buy a copy of my book every Friday for the rest of your life, I'm probably not going to justify spending money to build "brand awareness" by paying someone to fly a banner on a plane. I probably cannot justify spending the money on a banner either, unless it's a paper banner and I print it out on my laser printer and tape the sheets together. If I only have an inkjet printer? No way. Inkjet ink is more expensive than gasoline.
Anyway, also, they say people need to see a brand name an average of three times before they might buy, so if you've got a beer tent at the beach with your beer brand name on it, and you're running a radio ad and you have that plane flying over the beach, okay, you might get some sales.
But, books? It's probably a money-losing situation. And, ten years from now, people might still talk about how they saw a plane flying a banner over the beach advertising a book of all things, but they probably won't remember the name of the book or the author. So, that would be a brand awareness fail.
Maybe the next big thing will be jingles for authors. We can stick a speaker on top of our cars and drive around town.
"Please buy my book, it's worth a look! It's got simple words and I brake for birds! Please buy today as I've got bills to pay!"
Might be less expensive than printing that banner on your inkjet printer.