It's not the retail store that's an issue. People who walk into the store, pick up a bottle, and buy it actually get to was out of the store with it, too.
The retail store has long been a VERY minor part of their business. (Remember, I sold wine to them starting back in the 1990s.) They were one of the earliest web-based wine retailers. They originally solicited sales the "old-fashioned way," by picking up the telephone and calling clients (e.g.: I've got a small parcel of 1982 Château Pétrus coming in -- it's only $$$$ -- how many cases do you want?"). This evolved into offerings by fax, email and then a website.
Originally, the only reason to actually go to the retail store was to pick up the wine you ordered via phone (by credit card). And with the growth in shipping came a) a more widespread geographic customer base (including overseas), and b) no reason whatsoever to actually set foot inside their store. Indeed, most days, you could fire an AK-47 (or perhaps an AR-15) with 30-round clips inside the store, reload and do it again and again, and never hit an actual customer . . .