I know several people who will buy something from multiple retailers so that they ensure that they get what they want when they want and return the "slow" items.
The part that these people are completely oblivious to is that they then have to wait for these packages, figure out what they are, print labels, and get them to a return location. This ends up being a cost in time akin to getting a workout in, reading a book, or taking a walk that day.
This is an exageration. It comes in the packaging, it's just tape, and most of these places, especially Walmart and Amazon, have counters in stores you might have wanted to go to anyway to return them without packaging them right anyway. When you do a Amazon return it gives you like a month to do it in