That's called showrooming and is a serious dick move to do to a small business.
Re:The case for ending Amazon’s dominance
by crimsonalucard on Sunday February 18, 2018 @01:22PM
(#16407335)
Yeah it is, my parents owned a small business and they got owned by this tactic.
Don't rely on altruism for change. Expect the worst out of people.
Bring your smartphone with you when you go to the store. That way after the staff tells you what you want, you can order it from amazon without leaving the store.