The B&N in a nearby university town ended up being a library for students and a magnet for homeless people, so it closed. The B&N in a suburb miles away is still doing business.
There’s a Borders in another nearby city and I hope it doesn’t close. They’ve managed to keep the homeless problem to a minimum.
What matters is that enough people are actually buying things there.
I’d never want an online bookstore to replace a real one. I love the experience of thumbing through a printed book before I decide to buy it, and to see related material on nearby shelves.