I rue missing out on a home (to buy): Gorgeous colonial tucked all the way in the back with a ~quarter-mile tree-lined private "boulevard", beautiful front yard and great backyard, 4+ acre lot, 65 acres of conservation land behind the house, 25-acre town forest on one side, and a neighbor at a distance with similar property on the other side.
That was 11 years ago, and I still rue it.