"Make a shitton of money with your text editor: a genius stockpicker's guide to bedding the women of your dreams."
Advance praise from Armando Montelongo.
The books on your bookshelf are meant to improve your lifestyle - they teach you new skills that you can charge for. Some books, however, do that on a higher, more general level.
Maybe I should raise my rates further...
There is nothing wrong with marketing. Marketing is how honest people get paid for doing honest work. (Both Jim and Nathan are honest. I've exchanged email with them both.)
In that case you'd never write it. The discussion isn't over some magic book of spells here.
It's about an honest product offer that with a modest amount of work the reader will move from point A to point B. Now you as writer could promise to refund the reader's money if it didn't work out, whether because the work was too much or the results didn't materialize.
That way everyone wins.
Luckily for saturnflyer, nathanbarry, bdunn, and me, plus many others, that problem isn't a generalized one. A few folks obviously agree with you, but it doesn't seem to be impacting our sales or our customers' happiness.
That opinion is a minority.
I have a lot of programming books on my shelf about various topics , but I don't have one called "make a shitton of money with your text editor".
It would feel a bit like those ebooks that promise to make it easy to generate effortless income on the stockmarket or get highly attractive women into bed with you.
I have no doubt that such books sell, but I wouldn't feel confident writing something that might not necessarily do exactly what it said on the tin for everyone reading it.