Presumably nothing they buy from Amazon.

If they wanted instant gratification, they'd buy it from a local store and get it immediately rather than having to wait a couple days.

Quite a bit, I usually try not to buy anything other than groceries, but when I need something I usually really need it because something has either broken or a sudden need has arisen. That said I do try to get it locally first.

It can be about predictability as well. If Amazon says two days, it is usually two days. I arrange the purchase for a day when I don't work or work a short shift. If it is a valuable product that requires someone to receive the parcel, I don't have to deal with shippers who force people to use a pickup point that is a 15 minute drive away. (I don't drive, so that is usually problematic.) At the end of the day, in my case, it is more about receiving the product than getting it right away.

All of my restaurant purchases for sure.