50 miles is not really all that far, especially if there are closer markets that aren't full-blown supermarkets. Under the right circumstances--and assuming Internet etc.--I would certainly consider living 50 miles from a supermarket.
We do have a local grocery closer, it's about a 30 minute drive.
We strive to produce a lot of our own food, and that which we do not produce, we buy in bulk. We make a trip to the grocery every couple of weeks, primarily for things that perish quickly--produce in the winter (when we are not producing it in our garden), milk, etc.
Internet isn't great, but it can stream a few TVs worth of netflix, so it's not terrible either.
With 40 acres, mostly of hardwood forest I can romp around in--I love it there, truly.