Interesting how businesses open in clusters, competing with each other. Near the Prospect Park Q you have half a dozen coffee options, but one stop further and there are none except Blessings, not particularly on the way to anything if you are coming from further south. If a business migrated, it would have a monopoly from Winthrop south to Brooklyn College and beyond. Actually there is nothing around the Parkside Q, Church Q, Winthrop 2/5, Church 2/5, and points further south on the 2/5. I do love Nostrand Donut though.
I agree with RudolfAhrens. I've been saying that for years. I think businesses are too afraid to make that leap to the be the first in an area, even though I think that gives them a huge advantage. They think there aren't enough customers to support it.