Like David G., I live on that Island with the silver streets. But even so, as often as not, I now mail order film.
That's mainly because I'm usually stuck at work during the day and cannot get to the local shops and on weekends I'm up in the country. So internet mail order has become a great way to do 24/7 shopping.* And usually the shipping cost is no greater than the sales tax I avoid by ordering from an out-of-state retailer.
I hope I can always walk to a film retailer - but if not - I'm prepared.
*It helps living in a Manhattan high-rise with a package delivery room so I don't have to be there to sign for deliveries.