I'm tempted to go full philosophical waxing bullshit about self reliance and the pursuit of knowledge and understanding but I'll leave it there and instead recommend you all have a good read of Zen and the Art of Motorcycle Maintenance.
I can't speak for all books but there's definitely some where the ebook is cheaper. I def agree tho it's stupid that it's not cheaper every single time
https://www.amazon.com/gp/aw/d/B000VOQUZY/ref=tmm_aud_swatch_0?ie=UTF8&qid=&sr=