They easily could , but at the same time there is zero consumer pressure for them to do so . We know that taxes will be added at the register . We ' d also likely end up with higher prices due to the way things are priced . Many items are 1 cent less than nice numbers , e . g . $ 0 . 99 or $ 3 . 49 . With a pretty common sales tax of 7 % the $ 0 . 99 cent item would likely be round from $ 1 . 06 to $ 1 . 09 and the $ 3 . 49 item would go from $ 3 . 73 to $ 3 . 79 because prices ending in 9 s are what we ' re used to seeing . The 3 to 6 cents per item will really add up , and for what reason ? To make tourists happy that they don ' t have to take the five minutes to understand that tax is added at the register ? <| sep |> oh god when I first started playing witcher and I saw the facial expressions and detail I was really surprised . Haven ' t seen anything like it before .