Earlier quoted context omitted.
I dare you to try telling a 3-year-old who's winding up a tantrum because they want the airsoft pistol from the other aisle that they have to wait 3 days for the sensible age-appropriate & mentally-stimulating toy to arrive.
If trips to a toy store lead to tantrums, that sounds like an argument /against/ shopping there, not an argument /for/ shopping there.
Did you know? The 2-year-old will tantrum regardless where you are, and buying online means you don't have a quick out on hand (either getting the toy almost immediately after calming down and ensuring enough separation between the tantrum and getting the toy, or some stopgap alternative toy that's a tenth of the price).