I think shopping gets this in spades too because not all shopping sites are meant to be particularly sticky.

It's one thing to browse the catalog at my leisure on gigabit networking, a 5k display and 16 CPU cores. It's another thing when I'm standing in Macy's or Home Depot and they don't quite have the thing I thought they have and I'm on my phone trying to figure out if I can drive half a mile to your store and get it. If you want to poach that sale your site better be fast, rather than sticky.