Tough call. We live within one air mile of four (!) hospitals. One has pretty much become an add-on clinic for the homeless shelter that is adjacent to it because their overhead is so high they can't make it as a regular hospital. Another has been on the ropes for a while (we just don't need three full-line hospitals within a mile of each other and this one is smaller, part of a smaller care system, and not a designated trauma center).
But they're there. If there were a widespread emergency (tornado, explosion, pandemic, etc.), there are more treatment choices available close to each other than, say, where my friend's cabin is located (NW Wisconsin), where the only hospital (much smaller than the "failing" one here) is about 30-40 minutes away by car (maybe a little faster by ambulance unless the roads are icy). Whether that balances out the greater population/demand here I couldn't say. But it seems it would be easier to share services and equipment because they're so close to each other.