This is a very good point. If I go to a physical shop to touch and get a feel for the product, generally it's after a lot of online research into the product range.

I don't go to a physical store expecting to be able to get any useful information from a sales person.

Given that the only thing that the shop has given me is the ability to view and touch the physical product, I don't feel any guilt in then ordering online if the physical store can't supply or deliver the product immediately or in a way that is beneficial to me.