I used to go there a ton and I wanted to see if there were any good deals, see if my go-to was in stock, accumulate rewards, and check hours if I went to a new store. The app theoretically provides the "best" experience as well -- I've yet to see a mobile website recently for something I use day-to-day that isn't trying to push me towards the mobile app, or was clearly never tested on a real device. (Obviously, that's the ideal, but such is the state of things.)

The website didn't really suffice because the UX was bad, and wrestling with it got tiring. Apple+Google's hours were never quite correct.